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Guy Borenstein, FGA, is an accomplished gemologist and educator with extensive experience in gemstone procurement and gemological research. As the Director of Gemstone Procurement at Stuller, Inc. since April 2021, Guy leads the company's global buying strategies. Previously, Guy served as the Senior Gemologist at Stuller and owned GemoAid, where innovative instruments and training programs for gemologists were developed. As Chief Academic Officer at Gemewizard Ltd., Guy managed online educational programs focused on gem color, while also holding positions as VP of Gemological Services and Chief Gemologist at the European Gemological Center, overseeing testing processes and educational initiatives. Guy is a graduate of Gem-A and the European Gemological College, holding diplomas in Gemmology and Colored Stones Gemology & Diamond Grading.