Advanced Search

GIA Rolls Out Synthetic Melee Testing Service

Dec 6, 2016 3:48 AM   By Rapaport News
Comment Comment Email Email Print Print Facebook Facebook Twitter Twitter Share Share
RAPAPORT... The Gemological Institute of America (GIA) has started accepting stones for its automated melee testing service, which identifies potential synthetics in batches of small diamonds.

Following a five-month pilot, the GIA Melee Analysis Service is now open at most GIA laboratories for customers to submit round, 0.005 to 0.25-carat, D-Z color diamonds, the institute said.

The rapid service processes 1,800 to 2,000 stones per hour, separating natural, untreated diamonds from simulants and potentially synthetic or treated diamonds. It then sorts the screened diamonds by color and returns them to the customer in a sealed package.

GIA will charge $0.08 per stone for smaller diamonds, starting at the 0.90-1.49 millimeter range, and increase its prices gradually all the way up to $0.40 per stone for the 3.50-4.00 millimeter highest tier.
Tags: Gemological Institute of America, GIA, grading, lab-grown diamonds, melee, Rapaport News, Synthetics, technology, testing
Similar Articles
Sothebys black diamond 140Sotheby’s to Auction 555.55ct. Black Diamond
Jan 17, 2022
A 555.55-carat black diamond believed to originate from outer space will go under the hammer without reserve
Comments: (0)  Add comment Add Comment
Arrange Comments Last to First
© Copyright 1978-2022 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.