News

Advanced Search

Search Results

Headers Only 		   
Synthetic colored diamonds
De Beers Scores Partial CVD Patent Victory
A court has awarded a limited victory to De Beers’ synthetic-diamond production unit in a patent dispute with Singapore-based grower IIa
News Feb 09, 2020 Rapaport News
WD Lab Grown Diamonds
WD Sues Diamond Growers over CVD Patents
The companies behind WD Lab Grown Diamonds have filed three lawsuits against competitors, accusing them of infringing
News Jan 12, 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
News Dec 04, 2019 Leah Meirovich
WD
Lab-Grown Sector Gears Up for Eco Audit
Six synthetic-diamond companies have signed up for a pilot program aimed at creating a sustainability standard for the sector.
News Oct 15, 2019 Rapaport News
GIA CVD
GIA Spots Natural-Synthetic Hybrid Diamond
The Gemological Institute of America (GIA) has discovered a synthetic layer that improved the weight and color
News May 20, 2019 Rapaport News
Sarine
India Credit Slowdown Squeezes Sarine Profit
Sarine Technologies posted a loss in the first quarter as credit problems in the Indian manufacturing sector led to softened
News May 20, 2019 Rapaport News
Almas Tower
Dubai Exchange Holds First Lab-Grown Tender
The Dubai Multi Commodities Centre (DMCC) will offer rough lab-grown diamonds at tender for the first
News May 12, 2019 Rapaport News
GIA
GIA Aligns Lab-Grown Reports with FTC Standards
The Gemological Institute of America (GIA) has updated the language in its lab-grown-diamond certificates to conform to the recent
News Mar 31, 2019 Rapaport News
Irradiated melee
GIA Spots CVD Stone in Parcel of Treated Melee
In a rare case, the Gemological Institute of America (GIA) has discovered an irradiated chemical vapor deposition (CVD) diamond
News Feb 10, 2019 Rapaport News
Scio Diamond
Adamas Acquires Synthetics Producer Scio
Nevada-based Adamas One Corp. has bought all assets belonging to Scio Diamond, a producer of lab-grown diamonds. Adamas
News Dec 30, 2018 Rapaport News
Gems and Gemology LPHT CVD pink 150
Pink Synthetic Displays Rare Treatment
A pink diamond recently submitted to the Central Gem Laboratory (CGL) in Tokyo was found to be a chemical vapor deposition
News Dec 17, 2018 Rapaport News
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
Previous 1 Next
Show articles per page
Weekly Market Comment

Dealers and manufacturers cautious, with deep concerns about impact
Rapaport Reports

No articles found
MOST VIEWED
© Copyright 1978-2020 by Rapaport USA Inc. All rights reserved. Index®, RapNet®, Rapaport®, PriceGrid™, Diamonds.Net™, and JNS®; are registered TradeMarks.
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.