Spring 2019 - Volume 55, Issue 1

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the quarterly journal of the gemological institute of america


Editorial

Studies on Tourmaline, Sapphire, Cultured Pearl, and a Reliquary of Legend…

Duncan Pay, Editor-in-Chief


An overview of the Spring 2019 Gems & Gemology content.
 

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Articles (6)

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Regular Features

Lab Notes

Lab Notes

The latest advances and findings from GIA laboratories.

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Micro-World banner

Micro-World

An in-depth look at the hidden world of gem inclusions.

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Gem News

Gem News International

Global coverage of gem sources, notable new gem materials, and recent industry developments.

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Diamonds from the Deep

Diamonds From the Deep

Explores the role of diamonds in our understanding of the natural world.

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Book Review

Reviews

Your guide to the latest
gem and jewelry books
and other media.

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THE DR. EDWARD J. GÜBELIN

MOST VALUABLE ARTICLE AWARD

MVA Second Place Nathan

Gemological Characteristics of Sapphires from Yogo Gulch, Montana
Nathan D. Renfro, Aaron C. Palke, and Richard B. Berg

MVA Third Place Breeding

Natural-Color Green Diamonds: A Beautiful Conundrum
Christopher M. Breeding, Sally Eaton-Magaña, and James E. Shigley