Spring 2017

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Brazilian Diamonds: A Historical and Recent PerspectiveDarcy Svisero, James E. Shigley, and Robert WeldonCuprian Liddicoatite TourmalineYusuke Katsurada and Ziyin SunThe Role of Si licon in the Color of Gem CorundumJohn L. Emmett, Jennifer Stone-Sundberg, Yunbin Guan, and Ziyin SunJapanese Jadeite: History, Characteristics, and Comparison with Other SourcesAhmadjan Abduriyim, Kazuko Saruwatari, and Yusuke KatsuradaCauses of Iridescence in Natural QuartzXiayang Lin and Peter J. HeaneyCharacteristics of Gem-Quality By-Product Synthetic ZinciteJi Zhang, Yujie Gao, and Guanghai ShiEvery 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: 4301702 Show more