Glossary Blog » American Gem Society

Carbon is an element. Diamond, graphite, and carbon black are all carbon; the carbonates, like calcite, contain some carbon in combination with other elements.

Brilliant. A definition. A type of gem cutting used especially on diamonds with...

This is Why Peridot, The Birthstone for August is Out of this World August babies, prepare to be dazzled by the birthstone of your dreams: Peridot. a gemstone that's as vibrant and refreshing as a summer breeze. Picture this: a gem with the color of fresh limes, the brilliance of sunshine, and a history that's out of this world. Yeah, that's peridot, and it's...

Amethyst is a violet variety of quartz often used in jewelry and loved by many. The name comes from the ancient Greek  ("not") and ("intoxicated"), a reference to the belief that the stone protected its owner from drunkenness. According to the American Gem Society, Amethyst is purple quartz and is a beautiful blend of violet and red that can be found in every corner...