The GIA iD100™ gem testing instrument delivered highly accurate results in the second round of testing carried out by third-party testing laboratory UL for the Diamond Producers Association (DPA) Assure Program, the GIA said in a statement last week.

The lab stated that the DPA in its revised study of May 19, confirmed again that the GIA iD100 is 100% accurate in referring all potential laboratory-grown diamonds and simulants for further testing.

The second round of testing was carried out by UL after additional training and guidance was provided to their technician by GIA staff.

According to the GIA, the instrument attained a ‘diamond accuracy rate’ of 96.7 percent and a ‘diamond refer rate’ of 3.3 percent. These results replace the earlier results published by the Assure Program as they better reflect the performance of the iD100 when used with adequate guidance and training.

GIA also said that the GIA iD100™ can distinguish natural diamonds – mounted and loose, rough and cut – from laboratory-grown (HPHT and CVD) diamonds and diamond simulants in the colourless to near-colourless range, in sizes starting from 0.9 mm in diameter.

“This report confirms what GIA and our many clients who depend on the iD100’s accurate and consistent results already know,” said Tom Moses, GIA executive vice president and chief laboratory and research officer. “The iD100’s strong performance and accessible price provide value for the industry.”

“Proper use of the iD100 is very important,” said Dr. Wuyi Wang, GIA vice president of research and development. “Appropriate ambient lighting and correct placement of the instrument’s spectroscopic probe yield the most accurate and consistent results.”

The iD100 is available for US $4,995 and can be ordered online through the GIA website. GIA said it will also be on display at the forthcoming JCK Las Vegas trade show.

Pic caption: The GIA iD100™

Pic courtesy: GIA