Spring 2021 - Volume 57, Issue 1

All Issues

the quarterly journal of the gemological institute of america


Editorial

Internal Structures of Natural Pearls from Pinctada maxima, Identification of Resin-Filled Turquoise, Spinel Inclusions Chart, and More……

Duncan Pay, Editor-in-Chief


An overview of the Spring 2021 Gems & Gemology content.
 

Read More

Articles (4)

View All Articles In This Issue

Regular Features

Lab notes

Lab Notes

The latest advances and findings from GIA laboratories.

View All (8)
Cloud inclusion resembling the profile of a faceted diamond.

Micro-World

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

View All (8)
Gem News

Gem News International

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

View All (20)
THE DR. EDWARD J. GÜBELIN

Most Valuable Article Awards

MVA First Place

A Quantitative Description of the Causes of Color in Corundum
Emily V. Dubinsky, Jennifer Stone-Sundberg, and John L. Emmett

MVA Third Place

Naturally Colored Yellow and Orange Gem Diamonds: The Nitrogen Factor
Christopher M. Breeding, Sally Eaton-Magaña, and James E. Shigley