The Gemological Institute of America (GIA) lab in Carlsbad lab, California, has reported that it recently received a diamond for grading that was previously broken in two, and then glued together.
The 1.38 ct marquise-cut diamond, submitted for colored diamond grading services at the lab, suffered from “large fractures and a large cavity” on its table. After examining the stone with a gemological microscope, it was revealed that “it had previously broken in half and been repaired with an unknown adhesive”.
According to the GIA, a broken diamond that has been repaired was not something previously reported by GIA. Naturally, since the stone “was simply two pieces of diamond joined together, it was not eligible to receive a diamond grading report”.
In late August, the GIA reported that ts New York City lab received a package with just one natural stone and more than 1,000 undisclosed pieces of lab-grown melee – “the largest percentage of undisclosed synthetic melee that GIA has seen”.
