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Gemological Science International
Associate Member
Business Categories
Mark Gershburg
President
Gemological Science International
Contact information may be available to logged in members.
Company/Business


Business Categories
Gemological Laboratory
Gemstones
Agate, Alexandrite, Amethyst, Aquamarine, Beryl, Bi-color Tourmaline, Carvings, Chrysoberyl, Citrine, Corundum, Cultured Pearls, Emerald, Fancy Color Diamond, Fancy Color Sapphire, Garnet, Morganite, Opal, Paraiba Tourmaline, Quartz, Sapphire, Spinel, Tanzanite, Topaz, Turquoise, Zircon