Rapaport News


Search Results


Advanced search
Latest Articles
Rough Markets
Polished Markets
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
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 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 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
Signet, Alrosa Execs Join RJC Leadership
The Responsible Jewellery Council (RJC) has named threesenior figures from the trade to positions on its board. The new officers — appointed at the RJC’s annual generalmeeting in Moscow last week — include David Bouffard, vice...
Polished Markets May 22, 2018 Rapaport News
Mark Gershburg
Mark Gershburg Resigns from U.S. KP Authority
Mark Gershburg stepped down as director of the U.S.Kimberley Process Authority (USKPA) to focus on his company, GemologicalScience International, of which he is the founder and chief executive officer.New York-based USKPA administers and controls the use ofU.S....
Technology Dec 13, 2016 Rapaport News
gsi image logo
Press Release: GSI Works With WDMF, DGJG to Support Dubai Festival
Press Release: During the past month, Gemological Science International (GSI), one of the largest independently owned gemological laboratories in the world, has cooperated closely with the World Diamond Mark Foundation (WDMF) and...
Retail Feb 02, 2015 Gemological Science International
Previous 1 Next
Show articles per page

Call Us: 1-702-893-9400
Member License Agreement   RapNet Trading Rules & Code of Conduct    Privacy Policy  
twitter twitter
About Rapaport
Advertise with us