Geoffrey M. Dominy
World Gem Foundation

The World Gem Foundation was founded by Geoff to preserve, promote and study gemmology through their comprehensive range of theoretical and practical gemmological courses and programs. They currently offer fifteen theoretical and practical programs and courses:


Basic Gemmology
Advanced Gemmology
Gem Identification
Coloured Gemstones
Rubies, Sapphires & Emeralds
Opals and Jade
Organic Gems
Career Gemmology


Gem Identification 1
Gem Identification 2
Diamond Grading & Lab-created Diamonds
Coloured Gemstone Grading 1
Coloured Gemstone Grading 2
Lab-created & Treated Gems

For more information on the World Gem Foundation, please click here