News

Advanced Search

Search Results

Headers Only
   
Diamond swapping
Trade ‘Blind to Diamond-Swapping Threat’
Diamond dealers are failing to protect themselves against stone-swapping, and are instead waiting until an expensive loss
News Aug 15, 2018 Joshua Freedman
Pink Synthetic 150
GIA Grades ‘Largest’ Lab-Grown Pink
The Gemological Institute of America (GIA) has graded a 5.01-carat lab-grown diamond that, its producer claims, is the
News Jul 04, 2018 Rapaport News
GIA 150
GIA to Hold Synthetics Detection Seminars
The Gemological Institute of America (GIA) will offer a series of seminars this year on advanced detection of lab-grown stones.
News Jun 06, 2018 Rapaport News
WD synthetic 150
9ct. Synthetic Stone Sets ‘World Record’
WD Lab Grown Diamonds has created what it claims to be the world’s largest known synthetic diamond made using
News May 27, 2018 Rapaport News
IIDGR
Labs Refute Claims HPHT Escaping Detection
Major gemological laboratories have rebuffed claims that detection machines are failing to spot synthetic diamonds that
News Apr 25, 2018 Leah Meirovich
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
News Apr 15, 2018 Joshua Freedman
Diamond stock photo
US Lab Creates 6ct. CVD Synthetic
WD Lab Grown Diamonds has created and sold a round, 6-carat synthetic diamond that it claims is the first
News Feb 01, 2018 Rapaport News
Chinese Grading Lab 150 120617
Lab Spots Stone with CVD Coating
A Chinese gemological laboratory has identified a well-concealed synthetic-diamond coating that bolstered the size of a small natural stone.
News Dec 07, 2017 Rapaport News
Pink GIA diamond CVD H4 defect
GIA Finds Baffling Flaw in CVD Diamond
The Gemological Institute of America (GIA) doesn’t usually declare itself stumped, but a recent discovery of a flaw in a synthetic
News Jul 02, 2017 Joshua Freedman
GIA hybrid diamond
GIA Spots Natural Diamond with CVD Blue Layer
The Gemological Institute of America (GIA) has found a natural diamond with a synthetic coating that tints it blue
News May 04, 2017 Rapaport News
GIA 5ct undisclosed synthetic
GIA Spots Undisclosed 5ct. Synthetic Diamond
The Gemological Institute of America (GIA) reported the “largest” CVD synthetic diamond it has examined to date, after
News Oct 18, 2016 Rapaport News
Scio Diamond
Synthetic Diamond Grower Scio Back to Full Output after December Water Leak
Scio Diamond, a producer of synthetic diamonds from chemical-vapor deposition (CVD), said its Greenville plant in South Carolina
News Apr 13, 2016 Rapaport News
Bharat Diamond Bourse BDB Logo
Bharat Bourse Bans Synthetic Diamond Dealing
The Bharat Diamond Bourse has approved measures to stem sales of synthetic diamonds on the bourse premises, requiring
News Oct 02, 2015 Rapaport News
synthetic
Lab-Grown Diamonds Set to Fill Projected Deficit as Mined Output Declines
Technological developments in the production of grown diamonds embody a significant opportunity as researchers predict demand will double in the
News Sep 28, 2015 Rapaport News
D-Research
Dharmanandan Research Debuts Detection for Lab-Grown Diamonds
Dharmanandan Research Centre (DRC) has introduced its new instrument to identify lab-grown diamonds. Called D-Secure, the
News Sep 07, 2015 Rapaport News
ISO
BDI Says ISO CVD Standards Don’t Meet Expectations
The International Organisation for Standardisation's (ISO) new guidelines for lab-grown diamonds don’t meet the organization’s
News Sep 02, 2015 Rapaport News
GIA
GIA Plans 2016 Opening for Synthetic Research Center
GIA expects to open a diamond synthesis facility in New Jersey in January, Tom Moses, GIA executive vice president
News Sep 01, 2015 Rapaport News
CVD Lab
Nobel Laureate Lauds Washington Diamonds' CVD Technology
The chemical vapor deposition (CVD) technology developed by Washington Diamonds Corporation (WDC) to produce lab-grown diamonds is very
News Jul 30, 2015
synthetic
New Synthetic Detector to Be Shown at HK September Show: Quick Take
Diamond Services developed a new mini Raman spectrometer that it says is able to detect synthetic and color-treated diamonds
News Jul 22, 2015 Ronen Shnidman
synthetic
HRD Discovers Hard-to-Detect Synthetic Rough Diamonds: Quick Take
Producers are now able to create synthetic rough diamonds in shapes identical to natural rough diamonds, HRD Antwerp
News Jul 13, 2015 Rapaport News
Previous 1 Next
Show articles per page
Weekly Market Comment

Polished trading stable in 1 ct. and larger, with dealers optimistic

Rapaport Reports

Magazine
Lacking clarity

A bizarre press release from Alrosa landed in the Rapaport News

MOST VIEWED
© Copyright 1978-2018 by Martin Rapaport. All rights reserved. Index®, RapNet®, Rapaport®, PriceGrid™, Diamonds.Net™, and JNS®; are TradeMarks of Martin Rapaport.
While the information presented is from sources we believe reliable, we do not guarantee the accuracy or validity of any information presented by Rapaport or the views expressed by users of our internet service.