The lab is tightening the turnaround time on certain diamond grading reports for what normally is the industry’s busy season.
The lab confirmed it did not send the message.
The historic trade term is used to distinguish cultured Akoya pearls of a certain quality.
The Gemological Institute of America is letting go of 151 people, 100 of whom work in the lab in some capacity.
Gemologists have long used machines in diamond grading but technology has made it possible for them to “learn” how to do it on their own.
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The new corporation, GCAL USA LLC, will be part of the Sarine Group and its grading reports will read “GCAL by Sarine.”
The change comes following a year of research into how the trade determines what constitutes “peacock” color in pearls.
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The AGS Ideal Report by GIA is a digital-only addition to GIA diamond reports.
Some sapphires gain orange or yellow coloration when exposed to incandescent light, according to a recent lab note.
Assure is the program the Natural Diamond Council launched in 2019 to test lab-grown diamond screening devices.
The discoveries were outlined in the Lab Notes section of the fall 2022 issue of Gems & Gemology.
Created with Swiss robotics company Unimec, the ASDI-500 can screen stones as small as 0.5 mm at a speed of 700 stones per hour.