Our emerald buying guide can help you learn how these gems are graded, what to avoid, and how to identify a high quality stone or a bargain in the rough.
Gemological formulas identify the chemical composition of gems and minerals. Learn what the symbols, numbers, and parentheses mean.
Trapiche emerald gems are some of the world's rarest emeralds. Learn where they're found and how their characteristic “spoked wheel” patterns are formed.
Gemstone transparency describes how much light passes through a gem and how it scatters. Learn what causes a gem to be opaque, translucent, or transparent.
Everything you ever wanted to know about morganite. Find value guidelines, scientific data, expert comments, and more in our Gemstone Listings.
Emerald treatments, such as oiling, are very common. Learn what these techniques do, how emeralds are graded, and what green gems make great alternatives.
Emerald symbolism encompasses not only royalty but also wit, eloquence, and foresight. Learn more about the legends surrounding this prized jewelry stone.
Emerald enhancements involve a variety of different types of fillers, impregnations, and dyes. These treatments can improve the beauty of emeralds.
Emerald crystals can grow very large. Learn about some of the world’s largest emeralds, old and new, uncut or faceted, rough or carved.
In the gem design stage of jewelry making, faceters evaluate a stone's qualities. Learn how to choose a cut for a gemstone as unique as your personal story.