RapNet


Rapaport News

 

Rough Markets

 
Rapaport Broadcast
Martin Rapaport Addresses Israel Diamond Week
February 12 2020

Advanced search
Latest Articles
Videos
Features
News
Mining
Rough Markets
Polished Markets
Manufacturing
Retail

GSI to Flag Treatments in Lab-Grown Reports

Certificates will also state whether stone was created by CVD or HPHT.
Mar 15, 2020 8:35 AM   By Rapaport News
Print Print Facebook Facebook Twitter Twitter Share Share


RAPAPORT... Gemological Science International (GSI) has launched a new grading report for synthetic diamonds that states whether a stone has been through post-growth treatment, claiming to be the first major laboratory to offer this.

The LGX Complete certificate will specify whether the stone was created using High Pressure-High Temperature (HPHT) or chemical vapor deposition (CVD), GSI said last week. It will also clarify whether the diamond is “as grown,” meaning it hasn’t been treated or enhanced.

“Consumer confidence is key, and consumers want more information and complete transparency about the natural and lab-grown diamonds they are buying,” noted GSI president Debbie Azar.

HRD Antwerp’s reports, which it updated last year to include a larger selection of color and clarity grades, do not contain either piece of information, based on sample reports available on its website. Certificates from the Gemological Institute of America (GIA) include a note on whether the diamond was created using HPHT or CVD, but state they “may” include post-growth treatments.

Image: A lab-grown rough diamond. (Shutterstock)
Tags: cvd, Debbie Azar, Gemological Institute of America, Gemological Science International, GSI, HPHT, HRD Antwerp, Lab-Grown Grading Report, LGX Complete, Rapaport News
Similar Articles
Comments: (0)  Add comment Add Comment
Arrange Comments Last to First



Call Us: 1-702-893-9400
Member License Agreement   RapNet Trading Rules & Code of Conduct    Privacy Policy  
  
twitter twitter
About Rapaport
Advertise with us