From the seemingly common to the utterly obscure, you wouldn't guess these ten gemstones are rarer than a diamond! If you're looking for something unique for your next jewelry purchase, check out these ten stunning gemstones rarer than diamond.
Everything you ever wanted to know about red beryl (or bixbite). Find value guides, scientific data, expert comments, and more in our Gemstone Encyclopedia.
Emeralds get their green color from chromium and vanadium. Learn how the presence of these elements affects their formation and causes emerald fractures.