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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 a stone has been through post-growth treatment, claiming to be the first major laboratory to offer this.The LGX Complete...
Rough Markets Mar 15, 2020 Rapaport News
GSI treated diamond
Lab Spots New Method for Masking Synthetics
Gemological Science International (GSI) is urging extra diligence after receiving a lab-grown diamond bearing a treatment generally only found in natural stones.“Diamond-growing technology continues to improve and growers are trying to mimic natural diamonds in every possible...
Polished Markets Feb 25, 2020 Rapaport News
GSI
Lab Warns of Color Instability in CVD
Synthetic diamonds grown using chemical vapor deposition (CVD) could change color for an extended period following exposure to certain light forms, Gemological Science International (GSI) has warned. When testing a 2-carat CVD diamond,GSI...
Technology Dec 04, 2019 Leah Meirovich
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
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
GSI Surat Breaks New Ground in Bulk Star and Melee Testing
Gemological Science International (GSI), one of the world’s leading gemological labs, announced it has become the first and the only laboratory in India to begin batch-testing for star and melee-sized diamonds using state-of-the-art technology.In...
Polished Markets Aug 19, 2015 Rapaport News
gsi image logo
Press Release: GSI Hosts Educational Lunch in Surat
Press Release: Gemological Science International (GSI), one of the largest independently owned gemological laboratories in the world, hosted its first GSI Diamond Community Lunch on May 14, 2015 at The Gateway Hotel in Surat. GSI...
Marketing May 20, 2015 GSI
gsi image logo
Press Release: GSI & Parinay Jewellery Host Education Session in Trivandrum
Press Release: Gemological Science International (GSI), one of the largest independently owned gemological laboratories in the world, is pleased to conduct a training session in association with Parinay Jewellery at Trivandrum. This is the first time GSI collaborated...
Marketing Apr 20, 2015 GSI
gsi image logo
Press Release: GSI Botswana - The First to Utilize Sarine Axiom in Africa
Press Release: Gemological Science International (GSI), one of the largest independently owned gemological laboratories in the world, is pleased to announce that its Botswana laboratory is the first in Africa to use DiaMension™ Axiom. DiaMension™ Axiom is Sarine’s...
Manufacturing Feb 23, 2015 GSI
Marc Gershburg
Laboratories Need to Focus on the Jewelry Retail Market
Gemological Science International (GSI) is an independent commercial gemological laboratory. Founded in 2005, GSI is one of the youngest labs in the industry but has expanded rapidly to gain a global presence, opening offices in Surat and Gaborone toward...
Manufacturing Jan 30, 2015 Avi Krawitz
gsi image logo
GSI Opens Botswana Lab
Gemological Science International (GSI) has opened a laboratory in Gaborone to capitalize on Botswana’s growth as a trading center. “After decades of just mining rough diamonds, Botswana's capital, Gaborone, now cuts, polishes and sells diamonds, which creates...
Polished Markets Dec 28, 2014 Avi Krawitz
gsi image logo
GSI Hosts Workshops at the Kerala Gem & Jewelry Show
Press Release: Gemological Science International (GSI), a full-service, high-tech lab designed specifically to meet the rapidly changing needs of the jewelry industry, participates at the Kerala Gems & Jewellery Show (KGJS), 2014. At this premier...
Marketing Dec 01, 2014 GSI
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GSI to Participate at Dubai Intl. Jewellery Week 2014
Press Release: Gemological Science International (GSI), a full-service, high-tech lab designed specifically to meet the rapidly changing needs of the jewelry industry, will be participating at the Dubai International Jewellery Week, scheduled from December 3 to 6.This...
Marketing Nov 18, 2014 GSI
gsi image logo
GSI Opens Laboratory in Surat
Press Release: Gemological Science International (GSI), a full-service, high-tech lab designed specifically to meet the rapidly changing needs of the jewelry industry, has announced the launch of its state-of-the-art laboratory facility at Surat. As a result of growing...
Marketing Nov 03, 2014 GSI
gsi
GSI Conducts Intensive Seminar, Workshop in Nashik
Press Release: Gemological Science International (GSI) a full-service, high-tech lab designed specifically to meet the rapidly changing needs of the jewelry industry, conducted an intensive one day program, which included a seminar followed by practical workshop...
Research Sep 23, 2014 GSI
gsi
GSI's Joy Box Campaign Delivers First Round of School Supplies
Press Release: On July 17, 2104, Gemological Science International (GSI) launched the Joy Box campaign, a social initiative for Each One Teach One, which is tied to "Educate a Child, Discover a Personality" -- a charitable foundation aimed...
Marketing Aug 28, 2014 GSI
gsi image logo
GSI Thanks Nashik Saraf Assoc. for Successful Year
Press Release: Gemological Science International (GSI) is proud to announce the completion of its first year of serving Nashik’s retail gem and jewelry industry. It is a great privilege for GSI to be associated with the Nashik Saraf Association....
Marketing Aug 18, 2014 GSI
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