What jewels begin with the letter g?

Gagate

Gahnospinel

Gaspeite

Girasol

Goshenite

Grape Garnet

Green Diamond

Green Garnet

Greenstone

Grigualandite

Grossular Garnet

Gutta PPercha

Garnet

Gosshenite

Greek Agate

Golden Beryl

Grossularite

Goldstone

Green Jasper

Green Quartz

Gomed Gaya