Grading

Stuller Hires Guy Borenstein as Senior Gemologist

GradingMay 26, 2021

Stuller Hires Guy Borenstein as Senior Gemologist

He has relocated from Israel to Louisiana to lead its gemological laboratory.

Industry veteran Guy Borenstein has been named senior gemologist at Stuller, leading the supplier’s gem lab.
Lafayette, La.—Industry veteran Guy Borenstein has joined Stuller’s team. 

The supplier named him senior gemologist; he will be the lead gemological authority for the company. 

Borenstein succeeds Mike Turner in the role, who passed away suddenly in December 2019. 

He and his family have relocated from Israel to Lafayette, Louisiana, where Stuller is headquartered.

He started working there in early May, the company confirmed, where he leads the gemological laboratory, which sits alongside its in-house GIA Melee Analysis service lab and its team of diamond and gemstone experts. 

Its lab contains advanced gemological equipment that allows them to screen for and detect undisclosed lab-grown diamonds.

 Related stories will be right here … 
Borenstein’s role at Stuller will help the company comply with RJC Code of Practices and FTC rules regarding product integrity, a spokesperson for the company confirmed. 

He joined Stuller with 15 years of experience in various gemological disciplines, including serving as the vice president of gemological services at Gemewizard and chief gemologist at EGC and GWLAB laboratories. 

He is a Gemmological Association of Great Britain FGA and holds an EGG (E.G.L. Graduate Gemologist) diploma from the European Gemological College.

“Guy is a world-class talent, highly respected among leading gemologists, and we are fortunate to have him join the Stuller team,” said Stanley Zale, vice president of diamond and gemstone procurement at Stuller. 

“He is a great addition to our team. His knowledge and skills will help us continue to lead the industry with robust programs that best ensure the integrity of our products.”
Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

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