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GSI
GSI Launches Center for Synthetics Screening
Gemological Science International (GSI) is opening its second testing center in New York dedicated to identifying undisclosed lab-grown diamonds. The 4,200-square-foot facility on Fifth Avenue will be used to spot synthetics in loose-stone parcels and jewelry, GSI...
Polished Markets Jul 28, 2019 Rapaport News
GSI
Lab Finds Man-Made Sapphires Posing as Diamonds
Gemological Science International (GSI) has identified undisclosed lab-grown white sapphire melee set in pendants that had been submitted as natural-diamond jewelry. The pendants, which GSI’s NewYork lab had received for a routine screening,...
Rough Markets May 28, 2019 Rapaport News
GSI HK
GSI Opens Hong Kong Lab
Gemological Science International (GSI) has opened a laboratoryin Hong Kong, providing services including diamond grading and screening for undisclosedsynthetics. “Hong Kong is a major hub for the international diamond andjewelry industry,” said GSI...
Rough Markets Oct 03, 2018 Rapaport News
GSI NY
GSI Opens New York Screening Facility
Gemological Science International (GSI) has launched a new screeningand testing office in New York’s Diamond District. The facility, which will serve as a hub for the institute’sUS-based customers, will be dedicated to identifying undisclosed synthetic diamonds....
Rough Markets Sep 16, 2018 Rapaport News
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