a crystalline rock that can be cut and polished for jewelry

a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone

a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones

any of various gems (as chrysoberyl or chalcedony) that reflect light when cut in a rounded shape

the hard stony skeleton of a Mediterranean coral that has a delicate red or pink color and is used for jewelry

a semiprecious gemstone that takes a high polish; is usually green but sometimes whitish; consists of jadeite or nephrite