The American Gem Society (AGS) has granted Al Gilbertson its Robert M. Shipley award for his contributions to gemological research, education and service to the organization.
Gilbertson graduated as a gemologist in 1979, after years of experience in jewelry restoration, custom cutting, appraisals service and more, the group said Wednesday. He joined the Gemological Institute of America (GIA) as a researcher 25 years ago, where he was among the inventors of its cut-grading system for round diamonds and is named on several related patents. Gilbertson is also contributing to GIA’s research on cut grading for fancy-shaped diamonds.
“[Gilbertson’s] ability to bridge scientific precision with an understanding of diamond beauty has helped elevate our industry,” said AGS CEO Katherine Bodoh. “We are deeply grateful for his contributions and proud to honor him.”
He is also the author of American Cut – The First 100 Years, which is regarded as the standard reference in the field, it added.
“[Gilberson’s] impact on the gemological field is profound,” said GIA outgoing CEO Susan Jacques, who presented the award. “His work is at the heart of how we evaluate the quality of a diamond’s cut. He brings curiosity, precision, and an enduring passion for excellence to every project, and his legacy will continue to guide gemological science for generations to come.”
Image: Al Gilbertson getting the award from Susan Jacques. (AGS)