- The definition of a gemstones is a mineral or hard substance that can be polished and shaped for use in jewelry.
An example of a gemstone is an amethyst.
An example of a gemstone is the amethyst.
any mineral or petrified substance that can be cut and polished for setting into a piece of jewelry
A precious or semiprecious stone that may be used as a jewel when cut and polished.
- a gem, usually made of minerals.