The Gemological Institute of America (GIA) is putting on hold its diamond-sealing service after several GIA packets were tampered with and the diamonds swapped with treated stones by third parties.
According to GIA, the diamonds originally enclosed in the compromised packets were replaced with high-pressure, high-temperature or HPHT treated natural diamonds.
“The substitute treated diamonds superficially matched the GIA report information for the original diamonds, including information on the sealing packet data label,” the company said. “GIA is suspending sealing services in all locations indefinitely, pending an investigation of the source of this fraud.”
The institute is asking anyone with concerns about a GIA-sealed diamond to submit the unopened packet to any GIA laboratory for verification services, free of charge. All sealed diamonds submitted for verification will be returned unsealed.
“Should GIA conclude that the diamond in the sealing packet is the diamond described in the original report, the institute will issue a verification letter confirming that the diamond matches the original report. If the diamond does not match the GIA report, the institute will issue a new report with the correct results,” noted GIA.