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GIA
GIA Names New Mineral Johnkoivulaite
The Gemological Institute of America (GIA) has confirmed anew mineral species discovered in Myanmar, which it has called johnkoivulaite. The organization named the substance in honor of renownedmicroscopist and GIA researcher John Koivula. The 40-year...
Polished Markets Sep 18, 2019 Rapaport News
Kathryn Kimmel GIA  150
Kathryn Kimmel to Retire from GIA
Senior vice president and chief marketing officer KathrynKimmel will leave the Gemological Institute of America (GIA) after 29 years. A third-generation jewelry-industry member, Kimmel worked inretail, manufacturing and various other fields within the...
Polished Markets Aug 28, 2019 Rapaport News
Fake green rough diamond
GIA Exposes Rough Diamond with Fake Green Color
Manufacturers coated a rough diamond with a green substanceto imitate a natural color, the Gemological Institute of America (GIA) saidafter the stone turned up for grading.The presence of chromium oxide powder on the surface ofthe 6.49-carat crystal...
Rough Markets Aug 19, 2019 Rapaport News
GIA Scholarships
GIA, AGS Launch Beatrice Shipley Scholarship
The Gemological Institute of America (GIA) and its sisterorganization, the American Gem Society (AGS), have established a scholarship inhonor of the contributions made by Beatrice Shipley. Shipley, the wife of GIA and AGS founder Robert...
Polished Markets Jul 31, 2019 Rapaport News
Robyn Hawk thumbanil
Jewelry Blogger Robyn Hawk Dies at 63
Robyn Hawk, who authored a number of blogs on the jewelryindustry, passed away on July 16 at the age of 63 following a stroke. Dubbing herself a “serial blogger,” Hawk, who graduated fromthe Gemological Institute of America (GIA) in 2009 with a degree...
Polished Markets Jul 29, 2019 Rapaport News
Mercury Free Mining
Group Offers $1M Prize to Nix Mercury in Mining
Nonprofit organization Mercury Free Mining (MFM) hasorganized a global challenge campaign to eliminate the use of the dangerous metal in the industry,with the winning idea earning a $1 million prize, it said Tuesday. More than 15 million artisanal...
Mining Jul 24, 2019 Rapaport News
GIA color grading
GIA Cuts Prices 10% Amid Market Slowdown
The Gemological Institute of America (GIA) has temporarilyreduced grading fees for certain smaller diamonds after recording a drop in submissionsduring the recent industry slump. The organization is slashing prices of reports by 10% forpolished weighing from...
Polished Markets Jul 16, 2019 Joshua Freedman
Shanghai Jiao Tong University
GIA Expands China Education
The Gemological Instituteof America (GIA) will offer remote learning to students in China, expanding its collaborationwith ShanghaiJiao Tong University (SJTU). The GIA’s distance-educationprograms will allow participants to access equipment and gemstones in self-studystudent workrooms...
Polished Markets Jul 02, 2019 Rapaport News
Joyce Trust Diamond 150
Trust Is Key for Ethical Dealing, Say Suppliers
Transparency is a growing goal for wholesalers, but there’sanother “T” word that may be even more important: trust. In an industry definedby long-abiding relationships, assurances of ethical sourcing depend heavily ona seller’s reputation for integrity. Opening...
Polished Markets Jun 19, 2019 Joyce Kauf
artisanal mining
The Drive to Lift the Artisanal Stigma
The community of Fandehun is not used to pomp and ceremony.The modest village in the heart of Sierra Leone’s Kono District has beensustained by diamond mining for over 50 years but lacks the basics many takefor granted...
Mining Jun 12, 2019 Avi Krawitz
GIA
Former GIA President Glenn Nord Dies at 90
Glenn Nord, the third president of the Gemological Instituteof America (GIA) and a pioneer of its corporate training program and globaloutreach, died Sunday aged 90. “Glenn Nord was a committed advocate for GIA’s mission,...
Polished Markets Jun 11, 2019 Rapaport News
GIA
GIA Offers Origin Reports for Colored Diamonds
The Gemological Institute of America (GIA) will offer provenance reports for colored diamonds, expanding its existing service matching polished to the original rough. The organization analyzes the physical measurements andother scientific data...
Polished Markets Jun 02, 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
GIA HPHT
Undisclosed Green Synthetics Raise GIA Eyebrows
Twenty-five undisclosed lab-grown diamonds have turned up atthe Gemological Institute of America (GIA) — including several with a raregreenish color. The GIA’s lab in Carlsbad, California, recently received thestones — weighing from 0.46 to 0.52 carats — for...
Technology May 26, 2019 Rapaport News
GIA CVD
GIA Spots Natural-Synthetic Hybrid Diamond
The Gemological Institute of America (GIA) has discovered asynthetic layer that improved the weight and color of a natural diamond, and haswarned that the phenomenon may be happening more often.The cushion modified brilliant, 0.64-carat...
Technology May 20, 2019 Rapaport News
Alrosa Purple
11ct. Purple Expected to Fetch Over $10M
Hong Kong-based M&B Limited expects to sell a record-setting purple diamond for more than $10 million, after buying the stone from Alrosa. The cushion modified brilliant-cut, 11.06-carat diamond isthe largest fancy-deep-purple-pink stone...
Polished Markets May 15, 2019 Rapaport News
Aurelien Delaunay
The Gem Lab That Refuses to Grade Synthetics
The French Gemmological Laboratory (LFG) is the oldest ofits kind in the world. Founded in 1929, it came into being after the arrival ofcultured pearls on the market prompted more than 300 pearl dealers from...
Polished Markets May 06, 2019 Marie Chabrol
Renee Newman author
Do the 4Cs Still Make the Cut?
The “5Cs and 2Ts” isn’t as catchy as the usual formula, but it might be a better pricing method, according to the author of a diamond-trade guide that claims the 4Cs are no longer adequate.“One of the biggest misconceptions is that...
Polished Markets May 06, 2019 Joshua Freedman
GIA
GIA Steps Up Compliance Rules
The Gemological Institute of America (GIA) will require customers to disclose key identification information as part of its new compliance program, it said Monday.Under the lab’s Know Your Customer system, clients will need to confirm their...
Polished Markets Apr 30, 2019 Rapaport News
GIA
GIA Finds Clues to Continent Formation
Mineral inclusions in rare diamonds have provided clues towhen their continents of origin were formed, according to research by the GemologicalInstitute of America (GIA). The researchers studied sulphide inclusions in type Ibyellow diamonds originating from the...
Mining Apr 29, 2019 Rapaport News
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