the quarterly journal of the gemological institute of america
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the quarterly journal of the gemological institute of america
Integrating G&G with GIA’s Gemology Education
By Duncan Pay, Editor-in-Chief
We're creating synergy within GIA by supplementing our education curriculum with relevant research from G&G. This tie-in exposes the tremendous amount of important work that G&G authors—both internal and external to GIA—have done to enrich our collective knowledge and share it with a wider, younger audience.
Articles (4)
Nephrite Jade from Val Malenco, Italy: Review and Update
Analysis of 21 rough and gem-quality samples offers an update on the composition and properties of this pale green gem from the Italian Alps.
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Optimizing Face-Up Appearance in Colored Gemstone Faceting
How contrast patterns can increase perceived brightness and optimize a gemstone's appearance.
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Fluorescence Produced by Optical Defects in Diamond
How variations in UV lamp output can affect observed fluorescence color and intensity.
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Optical Defects in Diamond:
A Quick Reference Chart
A simple chart on optical defects in diamond, including those that produce coloration and fluorescence colors.
Read MoreRegular Features
Gem News International
Global coverage of gem sources, notable new gem materials, and recent industry developments.
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Gemological Abstracts
Summaries of important gem and jewelry articles recently published elsewhere.
View All (15)MOST VALUABLE ARTICLE AWARD
CVD Synthetic Diamonds from Gemesis Corp
Wuyi Wang, Ulrika F. S. D’Haenens-Johansson, Paul Johnson, Kyaw Soe Moe, Erica Emerson, Mark Newton, and Thomas M. Moses Wuyi Wang, Ulrika F. S. D’Haenens-Johansson, Paul Johnson, Kyaw Soe Moe, Erica Emerson, Mark Newton, and Thomas M. Moses
Gemstones from Vietnam: An Update
Le Thi-Thu Huong, Tobias Häger, Wolfgang Hofmeister, Christoph Hauzenberger, Dietmar Schwarz, Pham Van Long, Ursula Wehmeister, Nguyen Ngoc Khoi, and Nguy Tuyet Nhung
Emeralds from the Fazenda Bonfim Region, Rio Grande do Norte, Brazil
J. C. (Hanco) Zwaan, Dorrit E. Jacob, Tobias Häger, Mário T. O. Cavalcanti Neto, and Jan Kanis
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