Sphalerite Buying Guide
Our sphalerite 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.
3 Minute Read
Sphalerite Value, Price, and Jewelry Information
Quahog Pearl Buying Guide
Melo Pearl Buying Guide
Rubellite Tourmaline Value, Price, and Jewelry Information
Ten Rare and Expensive Engagement Ring Stones
Eight Famous Sapphires and the Stories Behind Them
How to Dry Opals Safely
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!