Gem School - Gemology School - Gemologist School

Jedi Spinels : a quest to the origin of the ultimate red spinels !

Vincent Pardieu

Applications of Raman Spectroscopy in Gemology

Lutz Nasdala

A revolutionary new color referencing tool for the industry

Christopher P. Smith

The ten most important quality factors for Australian Opal

Damien Cody

Exploring Gem Commercial Names

Gemewizard

Gem Pegmatites – Earth’s Treasure Chest

Peter Lyckberg

Treasures of the Tourmaline Group

Dr. Claudio C. Milisenda

Luminescence of Gems

Dr. Emmanuel Fritsch

Demantoid Garnet — Its horsetail inclusion and various origins

Masaki Furuya

Pearls, A Historical Review

Rui Galopim de Carvalho FGA DGA

Precision and artistic cut – two ways, one direction

Victor Tuzlukov

Brown Diamonds: A new in-depth look at their properties and classification

Dr.Thomas Hainschwang

Rock Creek Sapphires

Warren Boyd

Rubies from Greenland

Vincent Pardieu

Historical perspective on Emeralds

Rui Galopim de Carvalho FGA DGA