Spinel Buying Guide
Our spinel buying guide can help you learn how spinels are graded and how to identify a high-quality stone or a bargain in the rough.
6 Minute Read
Related Articles
Spinel Gem, Price, and Jewelry Information
Although long known best for being misidentified as ruby, the spinel gem is beautiful in its own right. Its colors,...
Read More
How Do Spinels Form?
Available in many colors, spinels are becoming more popular with consumers. Learn how spinels form and how these gemstones get...
Read More
Identifying Synthetic Spinel
Synthetic spinel is a widely used jewelry stone. Learn how gemologists can identify lab-made flame-fusion, flux, and Czochralski spinels.
Read More
Buying Gemstones in Afghanistan: A Beginner’s Guide
Considering buying gems in Afghanistan? Learn which Afghan gemstones to seek out, which to avoid, and prepare for a “buyer...
Read More
Latest Articles
Milarite Value, Price, and Jewelry Information
Very rare milarite crystals can occur in green and yellow colors. Transparent material can yield small but pleasant looking faceted...
Read More
Appraising Pearls: How to Grade Pearls
Novice gemologists and jewelers may find appraising pearls difficult. Our guide will show you how to appraise and grade different...
Read More
Agate Buying Guide
Decorative, patterned forms of agate are excellent natural gems. Learn more about agate's mesmerizing patterns in our agate buying guide....
Read More
Carving Techniques for Handling Inclusions in Transparent Gems
Inclusions don't have to result in a loss of mass or value when cutting transparent gems. Learn how to manage...
Read More
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get Gemology Insights
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!