gem
A gem generally refers to a gemstone, a cut rock or mineral. A gemstone (also called a jewel) is a piece of mineral crystal, which, in cut and polished form, is used to make jewelry or other adornments. Source here
A gem generally refers to a gemstone, a cut rock or mineral. A gemstone (also called a jewel) is a piece of mineral crystal, which, in cut and polished form, is used to make jewelry or other adornments. Source here