Diamonds, emeralds, chalcedony, agate, heliotrope; onyx, plasma; tourmaline, chysolite; sapphire, ruby, topaz; turquoise, zircon, cubic zirconia; jacinth, hyacinth, carbuncle, amethyst; alexandrite, cat's eye, bloodstone, hematite, jasper, moonstone, sunstone.
Jewelry Glossary
Gemstones
More terms starting with G
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Our education centre covers diamonds, precious metals, gemstones, and how to choose a ring in far more depth than a definition allows.