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Book Review: Gempedia: A Comprehensive Glossary for Gemstones and Gemmology
Review of Gempedia: A Comprehensive Glossary for Gemstones and Gemmology by Rui Galopim de Carvalho.
Read MoreThe Nature of the Be-Nb-Ta Containing Cloud in Natural Madagascar Blue Sapphire – An FIB/HRTEM Study
Investigates the nature of nano-inclusions of elements such as niobium, tantalum, and tungsten in the milky regions of natural beryllium-bearing sapphires.
Read MoreG&G Features in a Flash: Texas Topaz
Learn about Texas topaz history and geographic origin research.
Read MoreNew and Notable Finds from the GIA Lab: Winter 2023
Discover a bicolor chameleon diamond, a diamond with carbon dioxide, and a pink square inside a diamond.
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