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  • Cover of Gems & Gemology Fall 2012 issue, featuring rough red gem and polished gems

Fall 2012

  • $15.00

The PDF version of this issue is available at no charge. Visit www.gia.edu

Gemstones from Vietnam: An Update

Le Thi-Thu Huong, Tobias H‰ger, Wolfgang Hofmeister, Christoph Hauzenberger, Dietmar Schwarz, Pham Van Long, Ursula Wehmeister, Nguyen Ngoc Khoi, and Nguy Tuyet Nhung

Tsavorite and Other Grossulars from Itrafo, Madagascar

Ilaria Adamo, Valeria Diella, and Federico Pezzotta

Characterization of a Synthetic Nano-Polycrystalline Diamond Gemstone

Elise A. Skalwold, Nathan Renfro, James E. Shigley, and Christopher M. Breeding

Spectral Characteristics of Natural-Color Saltwater Cultured Pearls from Pinctada Maxima

Stefanos Karampelas

Turquoise from Zhushan County, Hubei Province, China

Quanli Chen, Zuowei Yin, Lijian Qi, and Yan Xiong

Inclusions in Aquamarine from Ambatofotsikely, Madagascar

Fabrice Danet, Marie Schoor, Jean-Claude Boulliard, Daniel R. Neuville, Olivier Beyssac, and Vincent Bourgoin

*Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

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