Fall 2015

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Colombian Trapiche Emeralds: Recent Advances in Understanding Their FormationIsabella Pignatelli, Gaston Giuliani, Daniel Ohnenstetter, Giovanna Agrosì, Sandrine Mathieu, Christoph e Morlot, and Yannick BranquetLarge Colorless HPHT-Grown Synthetic Gem Diamonds from New Diamond Technology, RussiaUlrika F.S. DíHaenens-Johansson, Andrey Katrusha, Kyaw Soe Moe, Paul Johnson, and Wuyi WangLetöengís Unique Diamond PropositionRussell Shor, Robert Weldon, A.J.A. (Bram) Janse, Christopher M. Breeding, and Steven B. ShireyOrigin Determination of Dolomite-Related White Nephrite through Iterative-Binary Linear Discriminant AnalysisZemin Luo, Mingxing Yang, and Andy H ShenEvery 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.Usually ships in 3-5 business days. SKU: 4301504 Show more