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Reference Values of Gems
Database updated: 26 September 2017
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Brief gemstone guide

To learn more about gems select a gemstone variety.
(See also alternative names of minerals)

Alexandrite
Amblygonite
Amethyst
Ametrine
Andalusite
Andesine
Apatite
Aquamarine
Axinite
Benitoite
Beryl
Chrysoberyl
Citrine
Danburite
Demantoid Garnet
Diamond
Diopside
Emerald
Enstatite
Fancy Diamond
Fire Opal
Fluorite
Garnet Color Change
Garnet Malaia
Garnet Mali
Hessonite Garnet
Hiddenite
Idocrase
Iolite
Kornerupine
Kunzite
Kyanite
Labradorite
Opal (Australia)
Opal (Ethiopia)
Peridot
Petalite
Pezzotaite
Phenakite
Quartz
Rhodochrosite
Rhodolite Garnet (Pyrope-Almandine)
Ruby
Sapphire
Scapolite
Sillimanite
Sinhalite
Spessartite Garnet
Sphalerite
Sphene
Spinel
Sunstone
Taaffeite
Tanzanite
Topaz
Tourmaline
Tourmaline Bi-Color
Tourmaline Paraiba (Brazil)
Tourmaline Rubelite
Tsavorite Garnet
Zircon
Zultanite (Color Change Diaspore)

 
 
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