News

Advanced Search

Search Results

Headers Only 		   
HRD fake GIA inscription 140
Belgian Lab Detects Diamond with Fake Inscription
HRD Antwerp recently discovered a fake inscription on a polished diamond the lab had received for grading. The
News Sep 22, 2021 Rapaport News
GIA lab-grown imposter 140
GIA Spots ‘Precise’ Attempt at Lab-Grown Fraud
The Gemological Institute of America (GIA) has uncovered a synthetic diamond with a forged inscription that fraudsters used
News Sep 13, 2021 Rapaport News
GIA lab-grown diamond reports
GIA Now Giving Details of Lab-Grown Treatments
The Gemological Institute of America (GIA) has started providing specific information on post-growth treatments for synthetic diamonds,
News Mar 16, 2021 Joshua Freedman
IGI lab grown report 140
IGI Lab-Grown Reports to Indicate Treatments
The International Gemological Institute (IGI) has updated its grading report for synthetic diamonds to include information
News Jan 21, 2021 Rapaport News
Patent
WD Opens Up Lab-Grown Patents to Distributors
WD Lab Grown Diamonds has entered into patent sublicensing agreements with two synthetics companies, enabling them
News Oct 25, 2020 Rapaport News
GIA lab-grown diamond reports
GIA Unveils New Lab-Grown Reports
The Gemological Institute of America (GIA) has launched its new grading reports for lab-grown diamonds, offering
News Oct 15, 2020 Rapaport News
IGI black diamonds 150
IGI Grades Record Black Lab-Grown Diamond
The International Gemological Institute (IGI) recently graded a 116-carat, black synthetic diamond that ranks as the largest
News Oct 01, 2020 Rapaport News
IGI pink and yellow 150
Lab-Grown Diamond Morphs from Yellow to Pink
The International Gemological Institute (IGI) recently graded a 10.06-carat, fancy-vivid-pink lab-grown diamond that had previously been
News Sep 02, 2020 Rapaport News
GSI treated diamond
Lab Spots New Method for Masking Synthetics
Gemological Science International (GSI) is urging extra diligence after receiving a lab-grown diamond bearing a treatment generally only
News Feb 25, 2020 Rapaport News
GIA
GIA Suspends Sealing Service
The Gemological Institute of America (GIA) has halted its diamond-sealing service after fraudsters tampered with packets
News Jan 19, 2020 Rapaport News
GIA HPHT
Undisclosed Green Synthetics Raise GIA Eyebrows
Twenty-five undisclosed lab-grown diamonds have turned up at the Gemological Institute of America (GIA) — including several with a rare
News May 26, 2019 Rapaport News
CIBJO
CIBJO Calls for Synthetics Treatment Disclosure
The World Jewellery Confederation (CIBJO) has specified the need to disclose treatments when it comes to both natural
News Mar 17, 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
GIA
GIA Sheds Light on De Beers’ Synthetics
Two white lab-grown diamonds from De Beers’ Lightbox brand have G color and VS clarity, the Gemological Institute
News Feb 07, 2019 Joshua Freedman
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 organization said.
News Feb 06, 2019 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
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
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
GIA synthetic inscription forgery
GIA Finds Synthetic Diamond with Forged Inscription
Fraudsters forged a Gemological Institute of America (GIA) inscription on a synthetic diamond to make it appear that the stone was
News Nov 13, 2017 Rapaport News
Previous 1 Next
Show articles per page
Weekly Market Comment

Trading quiet during Jewish and Indian festivals. China slowdown
Rapaport Reports

Magazine
Rough ride

They may not admit it, but almost every major
MOST VIEWED
© Copyright 1978-2021 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.