Colombian Trapiche Emeralds: Recent Advances in Understanding Their Formation
Isabella Pignatelli, Gaston Giuliani, Daniel Ohnenstetter, Giovanna Agros•, Sandrine Mathieu, Christophe Morlot, and Yannick Branquet
Large Colorless HPHT-Grown Synthetic Gem Diamonds from New Diamond Technology, Russia
Ulrika F.S. DíHaenens-Johansson, Andrey Katrusha, Kyaw Soe Moe, Paul Johnson, and Wuyi Wang
Letöengís Unique Diamond Proposition
Russell Shor, Robert Weldon, A.J.A. (Bram) Janse, Christopher M. Breeding, and Steven B. Shirey
Origin Determination of Dolomite-Related White Nephrite through Iterative-Binary Linear Discriminant Analysis
Zemin Luo, Mingxing Yang, and Andy H Shen
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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