n. 25B6; noun
rubies and other gems : JEWEL, precious stone, semi-precious stone, stone; solitaire, brilliant, cabochon; archaic bijou. See list.
the gem of the collection : BEST, finest, pride, prize, treasure, flower, pearl, the jewel in the crown; pick, choice, cream, the crème de la crème, elite, acme; informal one in a million, the bee's knees.
Gems
See also mineral s, rock 2 . greenstone
agate jacinth
alexandrite jade
almandine jasper
amber lapis lazuli
amethyst marcasite
aquamarine moonstone
beryl morganite
bloodstone moss agate
cairngorm onyx
carbuncle opal
carnelian rhodolite
cat's-eye ruby
chalcedony sapphire
chrysolite sardonyx
chrysoprase smoky quartz
corundum sunstone
diamond tanzanite
emerald topaz
fire opal tourmaline
garnet turquoise
girasol zircon