Summer 2015

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Dual-Color Double Stars in Ruby, Sapphire, and Quartz: Cause and Historical AccountKarl Schmetzer, Martin P. Steinbach, H. Albert Gilg, and Andrea R. BlakeDigital Photomicrography for GemologistsNathan RenfroRubies and Sapphires from Snezhnoe, TajikistanElena S. Sorokina, Andrey K. Litvinenko, Wolfgang Hofmeister, Tobias Hager, Dorrit E. Jacob, and Zamoniddin Z. NasriddinovEvery 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: 4301503 Show more