Enhanced Gem Inclusions
Gem treatments can affect a stone’s value and stability. Learn how the most common procedures work and how to identify enhanced gem inclusions.
3 Minute Read
Related Articles
Gem Treatment Survey: Is this Gem Natural?
We've tallied your opinions from our gem treatment survey. Are treated gems natural? How much should they cost? With a...
Read More
How to Identify Ruby Simulants and Synthetics
With practice and some basic tools, anyone can separate natural rubies from ruby simulants. Learn all about the most common...
Read More
Emerald Enhancements: A Consumer and Trade Guide
Almost all cut emeralds have had clarity enhancements. Learn how these emerald enhancements work, what substances are used, and how...
Read More
Destructive Gemstone Tests: Acid Testing
Acid testing is a destructive procedure gemologists and mineralogists can use to determine if some pieces are real or fake....
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!