- 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.
gemstone definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any mineral or petrified substance that can be cut and polished for setting into a piece of jewelry
gemstone definition by American Heritage Dictionary
A precious or semiprecious stone that may be used as a jewel when cut and polished.