News

Advanced Search

Search Results

Headers Only
   
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
DiamondDect5
What Makes a Good Synthetics Detector?
The massive project by the Diamond Producers Association (DPA) and Signet Jewelers to test and review 18 synthetic-diamond
News Mar 12, 2019 Joshua Freedman
DPA synthetics detectors study Mar 2019
DPA Puts Synthetics Detectors to the Test
A synthetics detector costing less than $7,000 is one of only two machines that conclusively identified 100% of lab-grown
News Mar 05, 2019 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
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

Markets quiet amid Jewish holidays with steady demand for

Rapaport Reports

No articles found
MOST VIEWED
© Copyright 1978-2019 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.