Advanced Search

GIA Now Able to Screen Fancy-Shaped Melee

Aug 24, 2020 6:19 AM   By Rapaport News
Comment Comment Email Email Print Print Facebook Facebook Twitter Twitter Share Share

 The Gemological Institute of America (GIA) has expanded its melee-screening capabilities, with the organization now able to test whether parcels of fancy-shaped diamonds contain lab-grown or treated stones.

The melee-analysis service separates natural diamonds from synthetics, simulants and stones that are potentially treated using High Pressure-High Temperature (HPHT). Since launching it in 2016, the GIA has only been able to sort round-brilliant melee, the GIA said last week.

The service processes 1,800 to 2,000 stones per hour, and can also sort screened round diamonds by color and size range. Once diamonds are sorted, the melee is sealed in a secure package and returned, the GIA noted. 

Image: A parcel of melee diamonds sent in for testing. (Gemological Institute of America)
Tags: Gemological Institute of America, GIA, HPHT, lab-grown, melee-analysis service, Rapaport News, Synthetics
Similar Articles
Rapaport LogoRapaport Weekly Market Comment
Sep 23, 2021
Trading quiet during Jewish and Indian festivals. China slowdown injects caution into the market.
Comments: (0)  Add comment Add Comment
Arrange Comments Last to First
© 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.