Fall 2022 - Volume 58, Issue 3

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the quarterly journal of the gemological institute of america


The Geographic Origin of Diamonds, Sapphire from China, and Pigments Sourced from Gem Materials

Duncan Pay, Editor-in-Chief

An overview of the Fall 2022 Gems & Gemology content.

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Articles (4)

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Regular Features

Lab Notes

Lab Notes

The latest advances and findings from GIA laboratories.

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Fall 2022 Micro-World Banner


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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Diamond Reflections

Diamond Reflections

Examines topics related to the natural formation of diamond.

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G&G readers respond.

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Most Valuable Article Awards

MVA First Place

Measurement and Characterization of the Effects of Blue Fluorescence on Diamond Appearance
Yun Luo, David Nelson, Troy Ardon, and Christopher M. Breeding

MVA Second Place

Internal Structures of Known Pinctada maxima Pearls: Natural Pearls from Wild Marine Mollusks
Artitaya Homkrajae, Areeya Manustrong, Nanthaporn Nilpetploy, Nicholas Sturman, Kwanreun Lawanwong, and Promlikit Kessrapong

MVA Third Place

Blue Sapphires from Mogok, Myanmar: A Gemological Review
Wasura Soonthorntantikul, Ungkhana Atikarnsakul, and Wim Vertriest