Определение semi-precious в Английский Язык Английский Язык словарь
Sort of or somewhat precious or valuable. Usually used as part of the phrase semi-precious stones or semi-precious gems
semi-precious in AM, also use semiprecious Semi-precious stones are stones such as turquoises and amethysts that are used in jewellery but are less valuable than precious stones such as diamonds and rubies. a semi-precious jewel or stone is valuable, but not as valuable as a diamond, ruby etc