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GIA mistaken
‘Lab-Grown’ Diamond Turns Out to Be Natural
A client of the Gemological Institute of America (GIA)wrongly submitted a natural diamond as a lab-grown stone, the organizationsaid.The GIA’s Carlsbad laboratory recently received the round brilliant,2.23-carat, D-color diamond, which the customer had sent in for asynthetic-diamond...
Polished Markets Feb 06, 2019 Rapaport News
GIA Finds Moissanite Disguised as Diamond 150
GIA Spots Moissanite Posing as Rough Diamond
The Gemological Institute of America (GIA) has identified asynthetic moissanite stone that had been submitted to one of its laboratories as anatural rough diamond.The GIA’s Carlsbad lab recently examined the 9.71-caratstone, whose shape was...
Technology Feb 11, 2018 Rapaport News
GIA 150
GIA Unveils Plans for Labs in Surat and Antwerp
The Gemological Institute of America (GIA) will this year opena laboratory in Surat, and expand its operations in Antwerp to include diamondgrading.The GIA has secured premises for the two locations, and expects to open both...
Polished Markets Jan 09, 2018 Rapaport News
Chinese Grading Lab 150 120617
Lab Spots Stone with CVD Coating
A Chinese gemological laboratory has identified awell-concealed synthetic-diamond coating that bolstered the size of a small naturalstone. While the lower part of the stone was a colorless, naturaldiamond, the upper section, including the crown and...
Polished Markets Dec 07, 2017 Rapaport News
Gübelin Gem Lab
Gübelin Lab Makes U.S. Presence Official
Gübelin Gem Lab has launched a permanent location in New York aspart of a global expansion program that has seen the Swiss laboratory build apresence in three continents.Gübelin opened the lab at the startof this year...
Gemstones Jan 22, 2017 Rapaport News
man made
IGI Certifies 10-Carat Diamond Grown With New Technology
The International Gemological Institute (IGI) Hong Kong certified lab-grown, 10.02-carat, E, VS1, type IIa, square, emerald-cut stone produced by New Diamond Technology LLC of St. Petersburg, Russia. The lab stated that the stone...
Technology May 26, 2015 Jeff Miller
Blom: Open Letter Regarding Over-Grading Certification
Press Release: The following is an open letter to the trade from Ernie Blom, the president of the World Federation of Diamond Bourses (WFDB). Colleagues and friends,The diamond industry is facing a serious challenge to its integrity, which...
Polished Markets Nov 21, 2014 Ernie Blom
IGI Launches Jaipur Testing Laboratory, Education Institute
Press Release: International Gemological Institute (IGI) – a pioneer in diamond and gem testing services with an unmatched school of gemology – today launched its first testing laboratory and education institute in Jaipur, one of the most active...
Marketing Aug 12, 2014 IGI
ruby diamond ring
Gubelin Adds New Disclosure Option for Gemstone Reports
The Gubelin Gem Lab is launching a new option that it calls the ''next generation" of disclosure for laboratory-issued gemstone grading certificates. Traditionally, gemstone certificates have been issued without disclosing the identity of the party...
Gemstones Jul 23, 2014 Jeff Miller
IGI Mumbai Education Program Broadens Gemology for Young Gemologists
Press Release: The International Gemological Institute (IGI) – the world’s largest independent laboratory for testing and grading gemstones and fine jewelry – recently launched its “Young Gemologist” summer workshop, an introductory half-day session...
Marketing Jun 09, 2014 IGI
Press Release
HRD Antwerp & Rapaport Announce Laboratory Take-In Service
PRESS RELEASE, May 12, 2014, New York: HRD Antwerp and the Rapaport Group are pleased to announce an agreement whereby Rapaport will be providing global access to HRD diamond-grading laboratories in Antwerp and Mumbai. The...
Research May 12, 2014 Rapaport & HRD
GIA Welcomes Its First Postdoctoral Associate to New York Lab
Press Release: Continuing its decades-long history of advanced gemological research and education, the Gemological Institute of America (GIA) has selected its first associate in the Richard T. Liddicoat Postdoctoral Research program. Participants in the program...
Marketing Feb 05, 2014 GIA
RapLab Launches Synthetic Diamond Detection Services
PRESS RELEASE, November 26, 2013: RapLab, a Rapaport Group company, is now offering synthetic diamond detection services to the diamond trade. The service will utilize DiamondSure® and DiamondView® technology developed by De Beers. RapLab will begin providing services in Ramat Gan, Israel and Mumbai, India on December...
Technology Nov 26, 2013 Rapaport
IGI's Grading Reports Offer Spanish, Portuguese Formats
Press Release: The International Gemological Institute (IGI) today announced the expansion of its diamond report series to include Spanish and Portuguese language options. As the Hispanic and Latino markets for jewelry continue to grow,...
Marketing Aug 19, 2013 IGI
Harry Kotlar & Co. Selects AGS for Kotlar Cushion Diamond Grading Reports
Press Release: Los Angeles-based fine jewelry manufacturer and diamond dealer Harry Kotlar & Company announces that it has selected the American Gem Society (AGS) Laboratory to be the exclusive grading report source for its proprietary cushion-cut diamonds. The Kotlar Cushion®, which combines the...
Marketing Apr 22, 2013 Harry Kotlar & Co.
GIA Opens Grading Laboratory in Japan
The Gemological Institute of America (GIA) has opened a grading laboratory ‎in Tokyo, Japan, marking a ninth global location. ‎‎“Bringing GIA’s diamond grading standards and research-backed lab services to such an ‎important market will serve...
Polished Markets Dec 03, 2012 Deena Taylor
DMIA Calls for Action to Prevent Synthetics from Entering the Market Disguised as Natural
The Diamond Manufacturers & Importers Association of America (DMIA) called upon domestic and international organizations, grading laboratories, governments and law enforcement to join together in a serious and committed effort to prevent the leakage of synthetic, laboratory-grown diamonds. The DMIA defined these recent leaks as conducted by ''those...
Polished Markets May 30, 2012 Jeff Miller
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