Al Gilbertson, GIA GG

Al, currently the Project Manager of Cut-Research at GIA’s Carlsbad Laboratory, was raised in the lapidary (gem-cutting) business and eventually managed a high-end retail jeweler whose shop employed several custom goldsmiths. He later owned a high-end trade shop specializing in several areas, including platinum fabrication, antique jewelry restoration, and an appraisal firm servicing over seventy jewelers.

Mr. Gilbertson holds a Graduate Gemologist Diploma (1979) from GIA and an American Gem Society Certified Gemologist title (1979). He has served as the Regional Director of the International Society of Appraisers, a member of the Appraisal Task Force (Jeweler’s Vigilance Committee), and an editorial advisor for The Guide. He has also been a columnist for Professional Jeweler on appraisal issues and a Jeweler’s Education Foundation Fellow. Al is the author or co-author of many articles related to cut evaluation. He is a rigorous and exhaustive researcher and is well known for his book American Cut —The First 100 Years, a comprehensive historical record of the development of round, brilliant-cut for diamonds from the mid-1800s to the mid-1900s.

In recognition of his significant contributions to the gemological field, the Accredited Gemologists Association bestowed the Antonio C. Bonanno Award for Excellence in Gemology in 2017.