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China synthetic diamond 150
Lab Finds 3ct. Synthetic with Fake Report
A grading laboratory in China has discovered a synthetic diamond masquerading as a natural stone, complete with a forged inscription and a falsified report.The National Gemstone Testing Center (NGTC) in the city of Shenzhen received a round-brilliant, 3.1-carat diamond ring,...
Technology Apr 15, 2018 Joshua Freedman
GECI logo
Press Release: GECI Lab Responds to Latest Diamond Grading Challenge
Press Release: The researchers and analysts at GECI laboratory in Milan have reacted quickly to the serious suspicion of a new treatment that temporarily enhances the color of diamonds. Overnight, the Milan-based lab began an exhaustive and...
Polished Markets May 18, 2015 GECI
GECI logo
GECI Lab Trumpets Grading, Customer Education Services
Press Release: The world of gemstones is evolving as market challenges grow more complex for the jewelry industry. Such examples include new and improving treatments of natural diamonds and colored gemstones, along with substantial...
Polished Markets Nov 13, 2014 GECI
Gem Diamonds Goods
Gubelin to Offer Off-Premise Testing
The Gubelin Gem Lab will be providing off-premise gem testing services in New York from July 14 through July 24 at 589 Fifth Avenue, Suite 1205. Gubelin asks that those interested in using its services contact...
Gemstones Jul 01, 2014 Rapaport News
synthetic diamonds
AG&J Alerts Trade to Synthetics Being Sold as Natural Type IIa Browns
Press Release: The New York-based gemological lab Analytical Gemology & Jewelry (AG&J) warned the trade of new, harder-to-detect chemical vapor deposition (CVD) diamonds being sold as natural, type IIa brown stones. A batch...
Gemstones Aug 08, 2013 AG&J
lab-created
M. Geller, Gemesis Partner on Distribution Deal
Press Release: Loose diamond wholesaler M. Geller Ltd. announced that they have entered into an agreement as an authorized distributor for Gemesis, the world’s principle distributor of gem-quality colorless and fancy color lab-created diamonds. According...
Marketing Aug 02, 2013 M. Geller
gia hong kong
GIA Hong Kong Identifies 10 CVD Synthetic Diamonds
The Gemological Institute of America (GIA) reported in its July issue of Gems & Gemology monthly eBrief that 10 synthetic diamonds grown by the chemical vapor deposition (CVD) were submitted to GIA Hong Kong in June. The...
Gemstones Jul 11, 2012 Jeff Miller
gsi image logo
GSI Opens a Diamond Grading Lab Inside BDB
Gemological Science International (GSI) has set up a grading lab inside Mumbai’s Bharat Diamond Bourse (BDB), the largest diamond bourse in the world. The new GSI lab is located at EW1190 in the BDB with easy...
Marketing May 22, 2012 Jeff Miller
hrd antwerp
HRD Completes Review, Cuts Ties With Three Firms
HRD Antwerp's board of directors received the results of an internal review of the diamond laboratory following allegations of improprieties in March. Based upon the results of that review, the board determined that remedial actions taken by management...
Financial-Legal Apr 27, 2012 Jeff Miller
gsi image logo
GSI Opens in Antwerp
Gemological Science International (GSI) opened a new laboratory in Antwerp, Belgium, making it the fourth GSI operation located in major diamond center. In addition to its headquarters in New York City, GSI has laboratories in Mumbai and Ramat...
Technology Mar 27, 2012 Jeff Miller
Scio Diamond
SCIO Diamond Secures Patent in Canada
SCIO Diamond Technology Corporation was issued its first Canadian patent (number 2511670), titled ''Tunable CVD Diamond Structures.'' The patent relates to single crystal diamond grown in layers, wherein the layers of diamond are...
Financial-Legal Jan 09, 2012 Jeff Miller
GIA Logo
GIA Plans to Open a Lab in Japan
The Gemological Institute of America (GIA) plans to establish a laboratory in Japan in 2012, a decision that was reached following lengthy consultations with various Japanese stakeholders. In addition, a GIA facility in Israel is scheduled to open in 2012. Both initiatives...
Marketing Dec 12, 2011 Jeff Miller
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