Winter 1993

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The PDF version of this issue is available at no charge. Visit www.gia.edu The Gemological Properties of Russian Gem-Quality Synthetic Yellow DiamondsJames E. Shigley, Emmanuel Fri tsch, John I. Koivula, Nikolai V. Sobolev, Igor Y. Malinovsky, and Yuri N. Pal'yanovHeat Treating the Sapphires of Rock Creek, MontanaJohn L. Emmett and Troy R. DouthitGarnets from Altay, ChinaFuquan Wang and Yan Liu 1993 Annual Index 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. Usually ships in 3-5 business days. SKU: 439301 Show more