( precious stones)
A precious stone is a valuable stone, such as a diamond or a ruby, that is used for making jewellery.
= gem
N-COUNT
( precious stones)
A precious stone is a valuable stone, such as a diamond or a ruby, that is used for making jewellery.
= gem
N-COUNT
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006