precious stone
noun [ C ] uk/ˌpreʃ.əs ˈstəʊn/ us/ˌpreʃ.əs ˈstoʊn/ (US also precious gem)
宝石
a valuable stone that is used in jewellery
The crown, decorated with diamonds and other precious stones, was exhibited in a special case. 装饰着钻石和其他宝石的王冠被放在一个特制的橱窗里展出。
Compare: jewelgem
See also: stone noun (JEWEL)