GradingAug 28, 2025 GIA’s New ‘Quality Assessment’ for Lab-Grown Diamonds Is Coming

On Oct. 1, GIA will roll out its Laboratory-Grown Diamond Quality Assessment (pictured), which will include the new “premium” or “standard” designation for lab-grown diamonds. Current laboratory services for D-to-Z lab-grown diamonds will be available until Sept. 30, GIA noted. (Photo courtesy of the Gemological Institute of America) Continue reading “GradingAug 28, 2025 GIA’s New ‘Quality Assessment’ for Lab-Grown Diamonds Is Coming”