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Lab-grown rough diamond
GSI to Flag Treatments in Lab-Grown Reports
Gemological Science International (GSI) has launched a new grading report for synthetic diamonds that states whether
News Mar 15, 2020 Rapaport News
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
News 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
News May 28, 2019 Rapaport News
GSI HK
GSI Opens Hong Kong Lab
Gemological Science International (GSI) has opened a laboratory in Hong Kong, providing services including diamond grading and
News Oct 03, 2018 Rapaport News
GSI NY
GSI Opens New York Screening Facility
Gemological Science International (GSI) has launched a new screening and testing office in New York’s Diamond District.
News Sep 16, 2018 Rapaport News
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