Each precious stone page features additional detailed gemological information, a buyer’s guide, photos, videos & research. Group of precious and semiprecious stones—both uncut and faceted—including (clockwise from top left) diamond, uncut synthetic sapphire, ruby, uncut emerald, and amethyst crystal cluster. Gemstone, any of various minerals highly prized for beauty, durability, and rarity A few noncrystalline materials of organic origin (e.g., pearl, red coral, and amber) also are classified as gemstones Gemstones have attracted humankind since ancient times, and have long been used for jewelry. Even the most general definition of a gem has many exceptions
Learn what qualities have been used to identify gemstones both scientifically and popularly. Articles about gemstones written by a gia graduate gemologist Each article includes photos and information about the gem's physical properties and geologic origin. All your gemstone questions answered what’s a gem When someone has characteristics we deem virtuous and beloved, we might call them a gem Similarly, a gem marks the benchmark for something special, something to be treasured with great respect
A complete gemstones list with images Whether for jewelry, collecting, or crystal healing, this gemstone list guides you to the perfect natural gem for your needs.
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