Two counterfeit GIA grading reports Surface in Antwerp (Idex, no.189)

The GIA laboratory has recently discovered two fake GIA grading reports. According to this report, the two were “high quality diamonds”: 3 carats, D-color, Internally flawless. The buyer had doubts and had one of the diamonds tested. When the result came back, it showed the diamond was a high pressure/ high temperature (HPHT) annealed. GIA had already issued a report for this diamond earlier. The original report said that it was an E VVS1. The diamond left the laboratory with full disclosure and an inscription which said it was HPHT processed, but this was removed from the girdle.
Doubts and questions about the authenticity of a GIA Diamond Grading Report: contact the GIA Gem Trade Laboratory by telephone at 760-603-4500 or fax 760-603-1814. Report numbers can be verified through these contacts. If it does not match the “GIA file” the client will be informed immediately. Then the original grading report can be updated: the diamond is fully graded again, including all of the screening steps for treatments.