• Cover of Gems & Gemology Spring 2011 issue, featuring strands of green and silver jewels

Spring 2011

  • $15.00
The PDF version of this issue is available at no charge. Visit

Demantoid and Topazolite from Antetezambato, Northern Madagascar: Review and New Data
Federico Pezzotta, Ilaria Adamo, and Valeria Diella

The Chinese Red Feldspar Controversy: Chronology of Research Through July 2009
George R. Rossman

UV-Vis-NIR Reflectance Spectroscopy of Natural-Color Saltwater Cultured Pearls from Pinctada Margaritifera
Stefanos Karampelas, Emmanuel Fritsch, Jean-Pierre Gauthier, and Thomas Hainschwang

Brownish Red Zircon from Muling, China
Tao Chen, Hao Ai, Mingxing Yang, Shu Zheng, and Yungui Liu

Aquamarine from the Thuong Xuan District, Thanh Hoa Province, Vietnam
Le Thi-Thu Huong, Wolfgang Hofmeister, Tobias Hâger, Nguyen Ngoc

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

GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout.
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SKU: 4301102