Gemstone Enhancements List

Full Aā€“Z Enhancements

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This is a complete gemstone enhancements list (A through Z) provided by Different Jewelry.

Gemstone Hardness Possible Treatment Treatment Purpose Frequency Stability Care Code
Alexandrite 8.5 none n/a n/a n/a Normal Care
Alexandrite - Narsipatnam 8.5 none n/a n/a n/a Normal Care n/a
Alexite 5.5 none n/a n/a n/a Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes n/a
Amazonite - Russian 6 - 6.5 none n/a n/a n/a Avoid heat, chemicals, and ultrasonic cleaners n/a
Amber - Baltic 2 - 2.5 none n/a n/a n/a Amber is very soft, so be mindful of scratching. Avoid harsh chemicals and ultrasonic cleaners n/a
Amber - Baltic 2 - 2.5 heated to improve appearance, deepen color, and add "sun spangles" usually good to very good Amber is very soft, so be mindful of scratching. Avoid harsh chemicals and ultrasonic cleaners H
Amber - Baltic 2 - 2.5 heated with oils under pressure to alter color usually good to very good Amber is very soft, so be mindful of scratching. Avoid harsh chemicals and ultrasonic cleaners HPHT, O
Amber - Baltic 2 - 2.5 dyed/stained to alter color rarely variable Avoid repolishing. Amber is very soft, so be mindful of scratching. Avoid harsh chemicals and ultrasonic cleaners D
Amber - Mayan Green 2 - 2.5 heated to alter color commonly
Amber is very soft, so be mindful of scratching. Avoid harsh chemicals and ultrasonic cleaners H
Amethyst - African 7 heated to improve color rarely excellent Normal Care H
Amethyst - Bahia 7 Heated To improve color Occasionally Very Good Normal Care H
Amethyst - Bolivian 7 heated to improve color rarely excellent Normal Care H
Amethyst - Green 7 heated to improve color rarely excellent Normal Care H
Amethyst - Lusaka 7 Heat treatment To improve color Occasionally Very good Normal Care. H
Amethyst - Mashamba 7 None n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Amethyst - Moroccan 7 None n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Amethyst - Pink 7 heated to improve color rarely excellent Normal Care H
Amethyst - Rose De France 7 heated to improve color occasionally excellent Avoid heat. Certain stones may fade in daylight. H
Amethyst - Rose du Maroc 7 n/a n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Amethyst - Uruguayan 7 heated Improve Color Commonly Excellent Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes H
Amethyst - Zambian 7 heated to improve color rarely excellent Normal Care H
Ametrine - Anahi 7 heated to improve color uniformity Occasionally Very Good Normal Care H
Ammolite - Canadian 3.4-4 Impregnated, Assembled Improve Color and Stability Commonly fair - good Avoid harsh chemicals, steam and ultrasonic cleaners. I, ASBL
Andalusite - Jenipapo 7 - 7.5 none n/a n/a n/a Normal Care n/a
Andesine - Red 6 - 6.5 Diffused To create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. DF
Angelite - Mexican 3 - 3.5 no treatment n/a n/a fair Avoid harsh usage n/a
Angelite - Mexican 3.5 n/a n/a n/a n/a Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes. Avoid exposing to liquids. n/a
Apatite 5 Heated To improve color Always Very Good Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners. H
Apatite - Blue 5 Heated To improve color Always Very Good Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners. H
Apatite - Canary Yellow 5 Natural N/a n/a good Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners.
Apatite - Cat's Eye 5 Heating To improve color Always Very Good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. H
Apatite - Emeraldine 5 Heating To improve color Always Very Good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. H
Apatite - Forte Dauphine 5 Heated to add color always very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Apatite - Emerald Green 5 Heated To improve color Always Very Good Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners. H
Apatite - Indian Ocean 5 Heated To improve color Always Very Good Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners. H
Apatite - Madagascar 5 none n/a rarely n/a Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners. n/a
Apatite - Madagascar 5 heated to improve color usually good Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners. H
Apatite - Madagascar Olive 5 n/a n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Apatite - Malgache Neon 5 Heating To create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. H
Apatite - Natural Green 5 none n/a rarely n/a Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners. n/a
Apatite - Neon 5 none n/a rarely n/a Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners.
Apatite - Paraibe 5 Heated To improve color Always Very Good Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners. H
Apatite - Yellow 5 Natural N/a n/a good Apatite is moderately soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners.
Aquamarine - Espirito Santo 7.5 - 8 heated to improve color usually excellent Normal Care H
Aqua Nueva Moss 6.0 to 7.0 n/a n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Aragonite - Cantonese Blue 3.5 - 4 none n/a n/a n/a Aragonite is soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners. Aragonite is generally unsuitable for jewelry. n/a
Aventurine - Green 3.5 - 4 none n/a n/a n/a Aragonite is soft, so be mindful of scratching. Avoid heat, harsh chemicals, and ultrasonic cleaners. Aragonite is generally unsuitable for jewelry. n/a
Azurite - Aurora 6.5 - 7.0 Dyeing To create color Rarely Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. D
Calsilica - Rainbow 3.0-4.0 Composite to enhance the appearance commonly good
n/a
Carnelian 6.0 - 7.0 Dyeing To create color Rarely Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. D
Carnelian 6.0 - 7.0 Heating To create color Very Rarely Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. H
Ceruliete 5 ā€“ 6 none n/a n/a n/a Normal Care
Charoite - Siberian 4.5-5 none n/a n/a n/a Charoite is somewhat sensitive to heat and pressure, so avoid the use of steam cleaners and ultrasonic cleaners, as well as any prolonged exposure to direct sun light. n/a
Chrysocolla 2.0-4.0 Iimpregenation to improve appearance and stability Usually Very Good Avoid scratching, ultrasonic cleaners, harsh household chemicals, prolonged exposure to direct sunlight and excessive heat I
Chrysocolla -AAA 2.5-3.0 Stabilization Increase durability Always Very Good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. S
Chrysocolla -Sierra Madre 2.5-3.0 Stabilization Increase durability Always Very Good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. S
Chrysocolla - Parrot Wing 2.0-4.0 Iimpregenation to improve appearance and stability Usually Very Good Avoid scratching, ultrasonic cleaners, harsh household chemicals, prolonged exposure to direct sunlight and excessive heat I
Chrysotile 5 none n/a n/a n/a normal care n/a
Chrysoprase - Australian 6 - 7 none n/a n/a n/a Normal Care n/a
Citrine - Brazilian 7 irradiated to create color unknown excellent Normal Care IR
Citrine - Brazilian 7 Heated To Improve color Commonly Very Good Normal Care H
Citrine - Madeira 7 heated to alter color usually excellent Normal Care H
Citrine - Red 7 Heated Create and improve color Always Very Good Normal care. H
Citrine - Santa Anna Madeira 7 heated to alter color usually excellent Normal Care H
Citrine - Santa Anna Madeira 7 irradiated to create color unknown excellent Normal Care IR
Coral - Angel Skin Mediterranean 3 - 4 none n/a n/a n/a Avoid scratching, temperature changes, steaming, chemicals, and ultrasonic cleaners.
Coral - Mediterranean Natural 3 - 4 none n/a n/a n/a Avoid scratching, temperature changes, steaming, chemicals, and ultrasonic cleaners. n/a
Coral - Sponge 3.5 Dyeing; Impregnation To create color; To increase durability Rarely Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. D, I
Danburite -Rose 7 Coating To create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. C
Diamond 10 Natural NA NA good Normal Care NA
Diamond - Champagne 10 N/A N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Diamond - Black 10 irradiated / heated to create color and improve clarity commonly fair to good Avoid heat, harsh chemicals, and ultrasonic cleaners IR H
Diamond - Blue 10 irradiated to create color occasionally excellent to very good Normal Care IR
Diamond - Blue 10 Irradiation, high pressure high temperature to create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. IR, HPHT
Diamond - Canary Yellow 10 Natural NA NA good Normal Care NA
Diamond - Green 10 irradiated to create color occasionally excellent to very good Normal Care IR
Diamond - Pink 10 None N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. N/A
Diamond - Purple 10 irradiated to create color occasionally excellent to very good Normal Care IR
Diamond - Red 10 Irradiation; High pressure heat treatment To create color; To improve color Always; Occasionally Very Good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. IR; HPHT
Diamond - Yellow 10 irradiated to create color occasionally excellent to very good Normal Care IR
Diamond - Yellow 10 N/A N/A N/A N/A Normal Care NA
Diopside - Indian Black Star 5 - 6 none n/a n/a n/a Diopside is moderately soft, so be mindful of scratching. Avoid sudden temperature changes and harsh chemicals. n/a
Diopside - Russian 5 - 6 none n/a n/a n/a Diopside is moderately soft, so be mindful of scratching. Avoid sudden temperature changes and harsh chemicals. n/a
Dino Bone 6.5 to 7 Stabilized Improve Durability Always Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes S
Emerald 7.5-8 None n/a n/a n/a Normal Care and Handling n/a
Emerald - Boyaca Colombian 7.5-8 None n/a n/a n/a Normal Care and Handling n/a
Emerald - Boyaca Colombian 7.5-8 oiled/resin infused to improve clarity Rarely Fair Avoid heat, harsh chemicals, and ultrasonic cleaners 0
Emerald - Boyaca Colombian 7.5 - 8 Filled Improve Appearance and Clarity Commonly Variable Normal Care and Handling F
Emerald - Ethiopian 7.5-8 oiled/resin infused to improve clarity always Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes O
Emerald - Boyaca Columbian 7.5-8 Dyed Improve Color rarely Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes D
Emerald - Kagem Zambian 7.5 - 8 Filled Improve Appearance and Clarity Commonly Variable Normal Care and Handling F
Emerald - Kagem Zambian 7.5 - 8 Oiled/Resin Infused Improve Appearance and Stability Always Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes O
Emerald - Premium 7.5 - 8 Filled Improve Appearance and Clarity Commonly Variable Normal Care and Handling F
Emerald - Socoto 7.5 - 8 Oiled/Resin Infused To improve clarity Commonly Fair Avoid harsh chemicals, steam, and ultrasonic cleaners. Avoid sudden temperature changes. O
Eudialyte - Russian 5 - 5.5 none n/a n/a n/a Normal Care n/a
Feldspar - Black 6.5 None n/a n/a n/a Normal Care IR
Fluorite - Belgian Teal 4 n/a n/a n/a n/a Normal care n/a
Fluorite - Canary Yellow 4 Heating, irradiation To improve color Common Very good Normal care H, IR
Fluorite - Chinese Blue 4 None n/a n/a n/a Avoid sudden temperature changes, steaming, chemicals and ultrasonic n/a
Fluorite - Color Changing 4 Irradiation To create color Always Very good Normal care I
Fluorite - Mint Green 4 None n/a n/a n/a Avoid sudden temperature changes, steaming, chemicals and ultrasonic n/a
Fluorite - Purple 4 Irradiation To create or improve color Always Very good Normal care IR
Garnet - Ambanja Demantoid 6.5 - 7 none n/a n/a n/a Normal Care n/a
Garnet - Anthill 6.5 - 7 none n/a n/a n/a Normal Care n/a
Garnet - Brazilian Mint (also known as Merelani Mint) 7 - 7.5 None N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Garnet - Brazil Red 7 - 7.5 none n/a n/a n/a Normal Care n/a
Garnet - Ceylon Imperial 7 - 7.5 none n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Garnet - Karo Tsavorite 7 - 7.5 none n/a n/a n/a Normal Care, Avoid sudden temperature changes. n/a
Garnet - Merelani Color Change 7 none n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Garnet - Madagascar Color Change 7 - 7.5 none n/a n/a n/a Normal Care n/a
Garnet - Malaya 7 - 7.5 none n/a n/a n/a Normal Care
Garnet - Mozambique 7 - 7.5 none n/a n/a n/a Normal Care n/a
Garnet - Mahenge Umbalite 7 ā€“ 7.5 None n/a n/a n/a Normal Care
Garnet - Musi River Garnet 7 - 7.5 none n/a n/a n/a Normal Care
Garnet - Orissa Rhodolite (Also known as Orissa Rose Garnet) 7 - 7.5 none n/a n/a n/a Normal Care n/a
Garnet - Purple 7 - 7.5 none n/a n/a n/a Normal Care
Garnet - Pyrope 7 - 7.5 none n/a n/a n/a Normal Care
Garnet - Ratnapura Hessonite 7 - 7.5 none n/a n/a n/a Normal Care n/a
Garnet - Red good to know none n/a n/a n/a Normal Care n/a
Garnet - Spessartite 7 - 7.5 none n/a n/a n/a Normal care n/a
Garnet - Viceroy Spessartite 7 - 7.5 none n/a n/a n/a Normal care n/a
Goshenite - Brazilian 7.5 to 8 None N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Grandidierite 7.0 to 7.5 None N/A N/A N/A Normal Care.. n/a
Helenite 5 Artificial glass made from Ash of Mt Helens n/a n/a n/a Normal Care n/a
Helenite - Champagne 5 Artificial glass made from Ash of Mt Helens n/a n/a n/a Normal Care n/a
Helenite - Purple 5 Artificial glass made from Ash of Mt Helens n/a n/a n/a Normal Care n/a
Heliodor 7.5 to 8.0 Heating To improve color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. H
Howlite 3.5 Dyeing To create color Commonly Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. D
Indicolite - Monte Belo 7 - 7.5 None n/a n/a n/a NormaNormal Care and Handling l Care n/a
Indicolite - Monte Belo 7-7.5 heated to improve color rarely excellent normal care H
Iolite - Catalina 7 - 7.5 none n/a n/a n/a Normal Care and handling. n/a
Jade - Black(Nephrite) 6.0 - 6.5 None n/a n/a n/a Avoid Ultrasonic and Steam cleaners n/a
Jade - Chinese 6.5 - 7 Waxing, Dyeing Improve color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. W, D
Jasper 6.5 -7 resin coated n/a n/a n/a n/a
Jasper - Australian Pibara 6.5 -7 resin coated n/a n/a n/a n/a
Jasper - Blood 6.5 -7 resin coated n/a n/a n/a n/a
Jasper - Bumble Bee 6.5 - 7 resin coated n/a n/a n/a n/a n/a
Jasper - Dalmatian 6.5 - 7 resin coated n/a n/a n/a n/a n/a
Jasper - Indian Script Stone 6.5 - 7 None n/a n/a Good Avoid sudden temperature changes, steaming, chemicals and ultrasonic n/a
Jasper - Mayan Porcelain 7 none n/a n/a n/a Normal Care n/a
Jasper - Mexican Porcelain 7 none n/a n/a n/a Normal Care
Jasper - Peanut Wood 7 none n/a n/a n/a Normal Care n/a
Jasper - Picture 6.5 -7 resin coated n/a n/a n/a n/a
Jasper - Porcelain 7 none n/a n/a n/a Normal Care
Jasper - Rainforest 7 none n/a n/a n/a Normal Care n/a
Jasper - Utah Rhyolite 6.5 - 7 resin coated n/a n/a n/a n/a
Jasper - Venus 6.5 -7 resin coated n/a n/a n/a n/a
Kunzite 6.5 to 7.0 Heated To improve color and remove brownish tones commonly good Avoid prolonged exposure to strong light and harsh usage H
Kunzite: Martha Rocha 6.5 to 7.0 n/a n/a n/a n/a Normal care. Avoid ultrasonic and steam cleaners. Avoid prolonged exposure to high heat or direct light. n/a
Kunzite - Xia 6.5 to 7 None N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Kyanite - Green 4 - 7 none n/a n/a n/a Avoid rough handling, temperature changes, chemicals, steaming, and ultrasonic cleaners. n/a
Kyanite - Himalayan 4 - 7 none n/a n/a n/a Avoid rough handling, temperature changes, chemicals, steaming, and ultrasonic cleaners. n/a
Kyanite - Orange 6.0 - 7.0 None n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Kyanite - Teal 4 - 7 none n/a n/a n/a Avoid rough handling, temperature changes, chemicals, steaming, and ultrasonic cleaners. n/a
Labradorite - Malagasy 6 - 6.5 none n/a n/a n/a Normal Care n/a
Labradorite - Finland Spectrolite 6 - 6.5 none n/a n/a n/a Normal Care n/a
Lapis Lazuli - Afghan 5.0-5.5 None n/a n/a n/a Normal, gentle handling. Avoid exposure to acids, heat and ultrasonic cleaners. n/a
Larimar 4.5 - 5 none n/a n/a n/a Normal Care n/a
Larimar - Nautral Green 4.5 - 5 none n/a n/a n/a Normal Care n/a
Lepidolite 2.5 - 3 none n/a n/a n/a Avoid exposure to high temperature and harsh household chemicals.
Magnesite 3.5 to 4.5 dying; impregnation to improve color; to improve durability Always Very Good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. D; I
Malachite - African 3.5 - 4 coated with colorless wax to improve appearance occasionally fair Malachite is soft, so be mindful of scratching. Avoid chemicals and ultrasonic cleaners. C, W
Malachite - African 3.5 - 4 dyed to improve color uniformity occasionally good Avoid chemicals, steam, and ultrasonic cleaners. D
Malachite - African 3.5 - 4 impregnated with plastic or other hardened agents to improve appearance and durability rarely good Malachite is soft, so be mindful of scratching. Avoid chemicals and ultrasonic cleaners. I
Marcasite - Swiss 6 - 6.5 none n/a n/a n/a Normal Care n/a
Marialite 5.5- 6 Can be Irradiated Improve Color Occasionally Very Good Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes n/a
Marvelous Meteorites 3-4 none n/a n/a n/a Normal Care n/a
Marvelous Meteorites 3-4 Coated To protect and prevent oxidation commonly good Avoid acids and chemicals C
Moldavite - Bohemian 5.5 none n/a n/a n/a Normal Care n/a
Mookaite - Kennedy Range 6 - 7 none n/a n/a n/a Normal Care n/a
Moonstones - Rainbow 6 -6.5 none n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Moonstones - Sri Lankan Metallic 6 -6.5 none n/a n/a n/a Normal Care n/a
Moonstones - Sri Lankan Orange 6 -6.5 none n/a n/a n/a Normal Care n/a
Moonstones - Sri Lankan Pink 6 -6.5 none n/a n/a n/a Normal Care n/a
Moonstones - Sri Lankan Rainbow 6 - 6.5 none n/a n/a n/a Normal Care n/a
Morganite - Marropino 7.5 - 8 irradiated to produce color commonly excellent Normal Care IR
Morganite - Marropino 7.5 - 8 heated to improve color commonly excellent Normal Care H
Nuummite - Greenland 5.5 to 6.0 n/a n/a n/a n/a Care and Handling: Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Obsidian - Coffee 5.0 - 5.5 None n/a n/a n/a Avoid harsh chemicals and ultrasonic n/a
Opal - created Black, Blue, Orange 5.5 - 6.5 Impregnated with Resin to improve color usually Good Avoid heat, chemicals, ultrasonic cleaners, and repolishing. I
Opal - Australian Boulder 5.5 - 6.5 n/a n/a n/a n/a Avoid heat, chemicals, ultrasonic cleaners, and repolishing. n/a
Opal - Australian Triplet 5.5 - 6.5 Assembled to add color usually very good Avoid heat, chemicals, ultrasonic cleaners, and repolishing. A
Opal - Australian Pink 7.0 n/a n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners.. n/a
Opal - Canary 6 - 6.5 N/A N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. N/A
Opal - Caramel 6 - 6.5 Impreganation To increase durability Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. I
Opal - Ethiopian Welo 5.5- 6 none n/a n/a n/a Avoid steaming, ultrasonic cleaners, harsh chemicals and abrupt temperature changes. n/a
Opal - Jalisco Fire 5.0 - 6.5 None N/a N/a N/a Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes n/a
Opal - Lab Created Black Ridge 4.0 Impregnation To increase durability Always Very stable Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. I
Opal - Mosaic 5 Assembled to improve appearance commonly good Avoid rough handling, contact with water, harsh cleaners and extreme temperatures. I
Opal - Natural Australian 5.0 - 6.5 None n/a n/a n/a Normal Care, Note: this rough is dyed n/a
Opal - Oregon Blue 5.5 - 6 none n/a n/a n/a Normal Care Note: this rough is dyed D
Opal - Oregon Peach 5.5 - 6.5 none n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Opal - Peruvian Mint Green 5.5 - 6 none n/a n/a n/a Normal Care n/a
Opal - Peruvian Pink 5.5 - 6 none n/a n/a n/a Normal Care n/a
Opal - Sable Ethiopian 5 - 7 Dyed ,impregnated, waxed/oiled Improve Appearance and Stability Occasionally Good Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes D,I, W
Opal - Sierra Madre Purple 5.0 - 6.5 None n/a n/a n/a Normal Care n/a
Opal - Salamanca Fire 5.5 to 6 None N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Opal - Crimson Fire 5.5 to 6.5 None N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. N/A
Orthoclase 6 - 6.5 None n/a n/a n/a Normal Care n/a
Orthoceras 3.5 - 4.5 None n/a n/a n/a Normal Care n/a
Pearl - Akoya 2.5 - 4 Bleaching; dyeing To remove color; to create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. B, D
Pearl - Edison 2.5 - 4 Bleaching; dyeing To remove color; to create color Always Very Stable Do not use harsh chemicals, steam or ultrasonic cleaners. Pearls should be stored wrapped in a soft cloth. If they require cleaning, soak in warm water with a mild soap, then wrap in a soft cloth to dry. They should be the last item to put on when dressing and the first to take off. B, D
Pearl - Tahitian 2.5 - 4 None n/a n/a n/a Do not use harsh chemicals, steam or ultrasonic cleaners. Pearls should be stored wrapped in a soft cloth. If they require cleaning, soak in warm water with a mild soap, than wrap in a soft cloth to dry. They should be the last item to put on when dressing and the first to take off. n/a
Pearl - South Sea 2.5 to 4 None n/a n/a n/a Do not use harsh chemicals, steam or ultrasonic cleaners. Pearls should be stored wrapped in a soft cloth. If they require cleaning, soak in warm water with a mild soap, than wrap in a soft cloth to dry. They should be the last item to put on when dressing and the first to take off. n/a
Petalite 6 to 6.5 None N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Peridot - Hebei 6.5 - 7 none n/a n/a n/a Normal Care n/a
Peridot - Hebei 6.5 - 7 impregnated, oiled/waxed to approve appearance rarely fair to good Avoid sudden temperature changes, harsh chemicals, and ultrasonic cleaners. I, W
Peridot - Hebei 6.5 - 7 filled to improve clarity rarely good Avoid sudden temperature changes, harsh chemicals, and ultrasonic cleaners. FF
Peridot - Arizona 6.5 to 7 None N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Pinolith - Austrian 3.5 to 4 None N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Pietersite - Golden 6.5 - 7 Bleached Improve Color Commonly Very Good Normal Care B
Pietersite - Hunan 7 none n/a n/a n/a Normal Care n/a
Prasiolite - Montezuma 7 heated to create color commonly excellent Normal Care H
Quartz - African Lilac 7 Assembled - Triplet Improve Stability and Color always good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Amazon (Also known as Smoketrine) 7 Heating To enhance color always Very Good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. H
Quartz - Aurelia Rutilated 7 none n/a n/a n/a Normal Care n/a
Quartz - Arizona Sunset 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Alexandria 7 Triplet (two natural colorless quartz are joined together with a colored epoxy) to add color always very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Quartz - Alexandria 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Aqua Terra Costa 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Blazing Red 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Bohemian Pink 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Brazilian Smokey 7 irradiated to create color usually good Normal Care IR
Quartz - Brazilian Watermelon 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Blue 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Blue Sapphire 7 Triplet (two natural colorless quartz are joined together with a colored epoxy) to add color n/a very good Normal Care A
Quartz - Black Ridge 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Bi-Color Imperial 7 Triplet (two natural colorless quartz are joined together with a colored epoxy) to add color n/a very good Normal Care A
Quartz - Capri Blue 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Cherry 7 None N/A N/A N/A Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. N/A
Quartz - Caribbean 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Celestrial Blue 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Ceylon 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Champagne 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Chartreuse 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Chrome 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Cobalt 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Copper Bloom 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Crackled Green, Blue, Paraiba, Black, Pink, Purple, Orange 7 Heated, Dyed Creates crackling and color Commonly Very Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. H, D
Quartz - Drusy 7 Dyed Improve Color Commonly Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. D
Quartz - Drusy 7 Coated Improve Color Commonly Very Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. C
Quartz - Drusy 7 heated to improve color occasionally excellent Normal care HE
Quartz - Emerald (Green Aventurine) 7 None n/a n/a n/a Normal care n/a
Quartz - Emeraldine 7 Assembled Improve color and stability Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Galilea Rose 7 none n/a n/a n/a Normal Care n/a
Quartz - Golden Rutilated 7 Assemble - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. n/a
Quartz - Herkimer Diamond 6.5 - 7 none n/a n/a n/a Normal Care n/a
Quartz - Indian Ocean 7.0 Assembled - Triplet Improve stability and create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Kunzite 7 Triplet (two natural colorless quartz are joined together with a colored epoxy) to add color n/a very good Normal Care A
Quartz - Indicolita 7 Assembled - Triplet Improve Stability and Color always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Larimar 4.5 - 5 Assembled - Doublet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Lavender Alexite 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Lemon 7 Assembled - Triplet Improve Stability and Color always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Moscato Pink (Also known as Patroke Quartz) 7 Assembled - Triplet To create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. A
Quartz - Madeira 7 can be Heated Improve Stability and Color always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. H
Quartz - Marsala Triplet 7 Assembled - Triplet Improve Stability and Color always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Midnight Fuchsia 7 Assembled - Triplet Improve Stability and Color always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Morganique 7 Assembled - Triplet Improve Stability and Color always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Morganite 7 Triplet (two natural colorless quartz are joined together with a colored epoxy) to add color n/a very good Normal Care A
Quartz - Mystic Chrome 7-7.5 Coated To create color frequently very good Gentle care. Avoid abrasions. Chipping may reveal natural color. Cannot be re-cut or re-polished. Avoid heat, chemicals, and ultrasonic cleaners. C
Quartz - Mystic Fire 7-7.5 Coated To create color frequently very good Gentle care. Avoid abrasions. Chipping may reveal natural color. Cannot be re-cut or re-polished. Avoid heat, chemicals, and ultrasonic cleaners. C
Quartz - Neon Apatite 7 Assembled - Triplet Improve Stability and Color n/a Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Opulant 7-7.5 Coated To create color frequently very good Gentle care. Avoid abrasions. Chipping may reveal natural color. Cannot be re-cut or re-polished. Avoid heat, chemicals, and ultrasonic cleaners. C
Quartz - Ouro Verde 7 irradiated; heated to induce color; to improve color always very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. IR; H
Quartz - Padparasha 7 Assembled - Triplet Improve Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Padparasha Color 7 Assembled Improve Stability and Color Always Fair to Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartz - Papaya 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Paraiba 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Peacock 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Peridot 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Playa (Also known as La Chiva Quartz) 7 Triplet to create color always very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. A
Quartz - Radiant Orchid 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Rainbow Genesis 7 Coated Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. C
Quartz - Royal Blue 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Rubellite 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Ruby 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Scarlet Red 7-7.5 Coated To create color frequently very good Gentle care. Avoid abrasions. Chipping may reveal natural color. Cannot be re-cut or re-polished. Avoid heat, chemicals, and ultrasonic cleaners. C
Quartz - Smoketrine 7 None n/a Rarely Very Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. n/a
Quartz - Sunfire 7 Assembled - Triplet Improve Stability and Color n/a Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Swiss Blue 7 Assembled - Triplet Improve Stability and Color n/a Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Salmon 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may reveal None Color. Cannot be re-cut or re-polished. ASBL
Quartz - Sphaleros 7 Assembled - Triplet To create color Always Very Good Avoid heat, chemicals, ultrasonic and steam cleaners. A
Quartz, Tanzurine Cherry 7 n/a n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Quartz, Volcanic 7 Assembled - Triplet Improve Stability and Color Always Fair - Good Avoid harsh chemicals, steam and ultrasonic cleaners. Chipping may remove color. Cannot be re-cut or re-polished. ASBL
Quartzite 6.5-7.0 Dyed to improve durability and appearance commonly good Avoid abrasives, ultrasonic, solvents and heat. D
Rhodochrosite - Argentinian 3.5 - 4 none n/a n/a n/a Rhodochrosite is soft, so be mindful of scratching and chipping. n/a
Rhodonite - Zaire 5.5 - 6 none n/a n/a n/a Normal, gentle handling n/a
Rhodochrosite 3.5 to 4 None n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Rubellite - Nigerian 7 - 7.5 None n/a n/a n/a Normal Care n/a
Rubellite - Nigerian 7 - 7.5 Heated To improve color Commonly Excellent Normal Care H
Rubellite - Nigerian 7 - 7.5 Irradiated To improve color Occasionally Good Normal Care R
Rubellite - Nigerian 7 - 7.5 Oil/Resins to fill fissures To improve clarity Occasionally Good Avoid Harsh Chemicals, Ultrasonic and Steam Cleaners O
Rubellite - Ouro Fino 7 - 7.5 heated to improve color commonly excellent Normal Care H
Rubellite - Ouro Fino 7 - 7.5 irradiated to create color occasionally good Normal Care IR
Rubellite - Ouro Fino 7 - 7.5 oiled/resin infused to improve appearance occasionally fair to good Avoid temperature changes, steaming, chemicals, and ultrasonic cleaners. O
Rubellite - Ouro Fino 7 - 7.5 dyed/stained to alter color rarely poor to fair Avoid temperature changes, steaming, chemicals, and ultrasonic cleaners. D
Ruby 9 heated to improve color usually good to excellent Normal Care H
Ruby - John Saul 9 heated to improve color usually good to excellent Normal Care H
Ruby - Kenyan Star 9 fissure filled/Diffused to improve durability and appearance and Phenomena commonly fair to good Avoid harsh chemicals, steam cleaners, and ultrasonic cleaners. FF
Ruby - Kenyan Star 9 heated to improve color commonly good to excellent Normal Care H
Ruby - Mundarara 9 Fissure filling To improve durability and appearance Always Fair to good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. FF
Ruby - Niassa (Also known as African Ruby) 9 fissure filled to improve durability and appearance commonly fair to good Avoid harsh chemicals, steam cleaners, and ultrasonic cleaners. FF
Ruby Zoisite 6.5 to 7 None n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Sapphire - Ceylon Blue (Also known as Royal Ceylon Sapphire.) 9 Heating, Diffusion To create color Usually, Rarely very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. H, DF
Sapphire - Chocolate 9 None n/a n/a n/a Normal Care n/a
Sapphire - Golden 9 heated to add color commonly very good Avoid repolishing/recutting. H
Sapphire - Kanchanaburi Blue 9 heated to improve color usually excellent Normal Care H
Sapphire - Kanchanaburi Blue 9 surface diffused to add color occasionally good Avoid repolishing/re-cutting. DF
Sapphire - Kanchanaburi Blue 9 diffused to improve color occasionally excellent Normal Care DF
Sapphire - Kanchanaburi Blue 9 Fissure Filled Improve Clarity Rarely Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes FF
Sapphire - Kanchanaburi Blue 9 irradiated to create color occasionally very poor Fades quickly in light or heat. IR
Sapphire - Ilikaka Hot Pink 9 fissure filling to improve durability always very good Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes FF
Sapphire - Ilikaka Hot Pink 9 Heating To improve color Commonly Very good Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes H
Sapphire - Mauve 9 Heating Improve Color Always Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes H
Sapphire - Masoala 9 diffused/fissure filled Improve Color Always Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes D, FF
Sapphire - Madagascar 9 Diffused To create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. D
Sapphire - Madagascar Purple 9 Diffused, Heated Improve Color and Durability Always Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes DF, H
Sapphire - Montana 9 Heating To create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. H
Sapphire - Niassa Pink 9 fissure filled, heated to improve durability and appearance, to enhance color commonly fair to good Avoid harsh chemicals, steam cleaners, and ultrasonic cleaners. FF H
Sapphire - Purple 9 Diffused, Heated Improve Color and Durability Always Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes DF, H
Sapphire - Sunset 9 Diffused, Heated Improve Color and Durability Always Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes DF, H
Sapphire - Silver 9 None n/a n/a n/a Normal Care n/a
Sapphire - Yellow 9 Heated to add color always very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Scapolite - Cat's Eye 5.5 - 6 none n/a n/a n/a Avoid chemicals, steam, ultrasonic cleaners and exposure to strong sunlight. n/a
Scapolite - Mocha 5.5 - 6 Irradiation To create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. IR
Shungite 3.5 to 4 n/a n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Scapolite - Mocha 5.5 - 6 Irradiated Improve Color Commonly Fair - Good Avoid chemicals, steam, ultrasonic cleaners and exposure to strong sunlight. IR
Seraphinite - Siberian 2.5 - 5.5 none n/a n/a n/a Avoid sudden temperature changes, chemicals, and ultrasonic cleaners. n/a
Seraphinite - Siberian 2.5 - 5.5 impregnated, waxed/oiled to improve hardness and luster commonly good to very good Avoid ultrasonic chemicals and solvents. I, W
Shadowkite - Table Mountain 2.0-4.0 impregnated to improve color and stability Occasionally Very Good Avoid scratching, ultrasonic cleaners, harsh household chemicals, prolonged exposure to direct sunlight and excessive heat I
Sillimanite - Green 7 - 7.5 Dyed Improve Color Always Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes D
Sodalite 5.5 - 6 Dyeing To create color Rarely Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. D
Sphene - Sava 5 - 5.5 none n/a n/a n/a Sphene requires no special care, though it is best suited for earrings and pendants due to its softness. n/a
Sphene - Sava 5 - 5.5 heated to create red or orange color rarely fair to good Sphene requires no special care, though it is best suited for earrings and pendants due to its softness. H
Spinel - Blue 8 Diffusion To create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. DF
Spinel - Mahenge Red 8 none n/a n/a n/a Normal Care n/a
Spinel - Mahenge Purple 8 none n/a n/a n/a Normal Care n/a
Stichtite - Tasmanian 1.5 ā€“ 2.0 stabilized n/a n/a n/a Avoid sudden temperature changes, chemicals, rough handling, heat, and ultrasonic cleaners. n/a
Strontium Titanate 5 - 5.5 lab created n/a n/a n/a Normal, gentle handling Strontium Titanate is a soft stone, so be mindful of scratching. n/a
Sunstone - Madras 6 - 6.5 None n/a n/a n/a Avoid sudden temperature changes, chemicals, rough handling, heat, and ultrasonic cleaners. n/a
Sunstone - Masai 6 - 6.5 None n/a n/a n/a Avoid sudden temperature changes, chemicals, rough handling, heat, and ultrasonic cleaners. n/a
Sunstone - Sri Lankan 6 - 6.5 None n/a n/a n/a Avoid sudden temperature changes, chemicals, rough handling, heat, and ultrasonic cleaners. n/a
Sphene - Madagascar 5.5 None n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Sphalerite - Picos Altos 3.5 to 4 None n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Swarovski Crystal - All colors 5.0-5.5 Coated Improve Color Commonly Very Good Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes C
Tanzanite 6.5 - 7 Heated Improve Color Always Excellent Normal Care H
Tanzanite - Bondi Blue 6.5 - 7 Heated Improve Color Always Excellent Normal Care H
Tanzanite - Natural Green 6.5 - 7 None n/a n/a n/a Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes n/a
Tanzanite - Natural Golden 6.5 - 7 None n/a n/a n/a Normal Care and Handling n/a
Tanzanite - Peacock 6.5 - 7 Heating n/a Rarely Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. Peacock Tanzanite may be heated as a side-effect of normal tanzanite production. Stones are not heated to enhance color. H
Thulite Norwegian 6.0-7.0 Stabilization Increase durability, improve appearance. Commonly Very good Normal care. Avoid exposure to high heat, chemicals, ultrasonic and steam cleaners. S
Tiger Iron 6.5 to 7 None n/a n/a n/a Normal Care n/a
Tiffany Stone - Utah 6.0 - 7.0 none n/a n/a n/a Normal Care n/a
Tigers Eye - South African 7 none N/a commonly n/a normal care n/a
Tigers Eye - South African 7 heated to alter color rarely good to very good Avoid harsh chemicals, ultrasonic cleaners, and steaming. H
Tigers Eye - South African 7 Dyed to alter color rarely good to very good Avoid harsh chemicals, ultrasonic cleaners, and steaming. D
Topaz - Blazing Red 8 Coated Improve Color Occasionally Very Good Normal Care and Handling C
Topaz - Coral Reef Mystic 8 Coated To create color Always Very Good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. C
Topaz - Electric Blue 8 Heated Improve Color Always Very Good Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-polished or re-cut. H
Topaz - Electric Blue 8 Irradiated Improve Color Always Very Good Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-polished or re-cut. IR
Topaz - Electric Blue 8 irradiation followed by heat (annealing) to produce to blue color usually excellent Avoid steaming, ultrasonic cleaners, and abrupt temperature changes. IR, H
Topaz - Electric Blue 8 none n/a n/a n/a Normal Care n/a
Topaz - Freedom Blue Mystic 8 Coating To create color Always Very Good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. C
Topaz - London Blue 8 irradiated to produce to blue color usually excellent Normal Care IR
Topaz - London Blue 8 heated to produce to blue color usually excellent Normal Care H
Topaz - London Blue 8 irradiation followed by heat (annealing) to produce to blue color usually excellent Avoid steaming, ultrasonic cleaners, and abrupt temperature changes. IR, H
Topaz - Mercury Mystic 8 Coated Improve Color Commonly Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. C
Topaz - Marambaia 8 Heated/Irradiated to add color always very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Topaz - Mystic Twilight 8 Coated to create color always very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. C
Topaz - Northern Lights Ecstasy 8 Coated to create color always very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. C
Topaz - Northern Lights Mystic 8 Coated Improve Color Commonly Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. C
Topaz - Ouro Preto Diamond-Cut 8 None n/a n/a n/a Normal Care and Handling n/a
Topaz - Prism Blue 8 Coated Improve Color Commonly Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. C
Topaz - Paraiba 8.0 Coated To create color Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. C
Topaz - Purple 8 Coated To create color Always Fair Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. C
Topaz - Signity 8 Coated to add color Always very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. C
Tourmaline - Mozambique Paraiba 7 - 7.5 Heated Improved Color rarely Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes H
Tourmaline - Australian Black 7 to 7.5 None n/a n/a n/a Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes H
Tourmaline - Pink (Also known as Morro Redondo Pink Tourmaline) 7 to 7.5 Heated Improved Color Rarely Fair Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes H
Tourmaline -Plum Blossom 7 to 7.5 n/a n/a n/a n/a Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. n/a
Turkizite 6.5 - 7.0 None n/a n/a n/a Avoid harsh chemicals, steam and ultrasonic cleaners. n/a
Turquoise - Anahi 5-6 Dyed to enhance color commonly good Avoid hot water, harsh household chemicals, and ultrasonic cleaners. D
Turquoise - Kingman 5 - 6 Stabalized, Zachary Process Improve Durability Always Good Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. S,Z
Turquoise - Mojave 5 - 6 impregnated to improve appearance commonly Good Avoid hot water, household chemicals, and ultrasonic cleaners. I
Turquoise - Mojave 5 - 6 Waxed/Oiled Improve durability and Appearance Always Good Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. W
Turquoise - Mojave 5 - 6 Dyed Improve Color Rarely Good Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. D
Turquoise - Mojave 5 - 6 Composite Improve durability Always Good Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. CMP
Turquoise - Persian 5 - 6 Impregnation Improve durability Always Good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. I
Turquoise - Royston 5 - 6 Stabilization To increase durability Always Very good Normal Care. Avoid heat, chemicals, ultrasonic and steam cleaners. S
Turquoise - Sleeping Beauty 5 - 6 Zachary process to improve durability and appearance commonly very good Avoid hot water, harsh household chemicals, and ultrasonic cleaners. Z
Turquoise - Sonoran Blue 5 - 6 Zachary process to improve durability and appearance commonly very good Avoid hot water, harsh household chemicals, and ultrasonic cleaners. Z
Turquoise, Spiny 5.0 to 6.0 Impregnation Improve durability Common Good Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. I
Turquoise, Spiny 5.0 to 6.0 Dyed Improve color Rarely Good Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. D
Turquoise, Spiny 5.0 to 6.0 Composite Improve durability Always Good Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. CMP
Turquoise, Spiny 5.0 to 6.0 Waxed/Oiled Improve appearance Always Good Avoid harsh chemicals, steam and ultrasonic cleaners. Cannot be re-cut or re-polished. W
Variscite - Utah 3.5-4.5 none n/a n/a n/a Color may fade in strong light. n/a
Vesuvianite 6.5 None n/a n/a n/a Avoid Scratching n/a
Vivianite - Australian 1.5 - 2.0 none n/a n/a good Vivianite needs to be cared for by keeping it indoors and not exposing it to sunlight for too long as the UV rays will darken it, and if left out it will go completely black. n/a
Zircon - Cambodian Blue 6.5 - 7 Heated To enhance color usually good Avoid harsh abrasives H
Zircon - Umba River 6.5 - 7 Heated Improve Color Commonly Very Good Avoid harsh chemicals, steam and ultrasonic cleaners. Avoid sudden temperature changes H
Zircon - White 6.5 - 7 None n/a n/a n/a Avoid harsh chemicals, steam and ultrasonic cleaners. n/a
Zirconia - Swarovski - All colors 8 Coated Improve Color Always Very Good Avoid Sudden Temperature changes, chemcials, and ultrasonic C