Antonio C. Bonanno

Antonio C. Bonanno, FGA, ASA, MGA, was founder and president of the National Gem Appraising Laboratory and director of the Columbia School of Gemology near Washington, D.C. He held the coveted "Master Gemologist Appraiser" title (GA), the highest distinction awarded to gem and jewelry appraisers from the American Society of Appraisers. He worked with gems and minerals for over sixty years, specializing in forensic gemology, and was frequently called as an expert witness in a wide range of court cases. A Fellow of the Gemmological Association of Great Britain With Distinction, he was highly esteemed in the field and holds a place in the prestigious Gemstone Hall of Fame. He founded the Accredited Gemologists Association, which created the Antonio C. Bonanno Award for Excellence in Gemology in his honor after his death in 1996.