Summer 2020 - Volume 56, Issue 2

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the quarterly journal of the gemological institute of america


Editorial

Dive Into Summer: Yellow and Orange Diamonds, New Identification Techniques, and the Chronicles of Chivor

Duncan Pay, Editor-in-Chief

An overview of the Summer 2020 Gems & Gemology content.
 

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Articles (5)

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Regular Features

Lab notes

Lab Notes

The latest advances and findings from GIA laboratories.

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This plate of muscovite mica from Brazil contains an interesting frond of tourmaline that shows vibrant color using polarized light. Photomicrograph field of view 15.67 mm.

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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THE DR. EDWARD J. GÜBELIN

MOST VALUABLE ARTICLE AWARD

MVA First Place Nathan

Geographic Origin Determination of Blue Sapphire
Aaron Palke, Sudarat Saeseaw, Nathan Renfro, Ziyin Sun, and Shane McClure

MVA Second Place Wim

Decade of Ruby from Mozambique: A Review
Wim Vertriest and Sudarat Saeseaw

MVA Second Place Dirlam

Gemstones in the Era of the Taj Mahal and the Mughals
Dona Mary Dirlam, Chris L. Rogers, and Robert Weldon