Detailed gem buying guides with example pictures and gem prices. Covers color, clarity, cut, carats, origin, values, wholesale and retail prices, and more.
Gem Price Guide
The IGS Gem Price Guide covers many popular as well as unusual, collectible gems. Find your gem’s retail value based on its type, size, and qualities.
Certification
Accelerate Your Gemology Career
Become an IGS certified gemology expert with our online course!