Gemstone enhancements improve the appearance and wearability of gems. Learn about the most commonly used procedures and frequently treated types of gems.
Arctangent Gemworks
The Four Cs of Gemstone Valuation - Ganoksin Jewelry Making Community
Emeralds - History's Favorite Stone? Learn more on !
A Quantitative Description of the Causes of Color in Corundum
Beryllonite Value, Price, and Jewelry Information - Gem Society
What are Gemstone Enhancements? - International Gem Society
989,446 Gemstones Images, Stock Photos Vectors Shutterstock
GRS GemResearch Swisslab AG - The Leader in Colored Gemstone Reports
Gemstone irradiation - Wikipedia
What are Gemstone Enhancements? - International Gem Society