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Press Release

August 2014

New technology reaffirms commitment to diamond integrity

Stuller, Inc. implements new Automated Melee Screening Device

Lafayette, LA (11 August 2014) – De Beers Sightholder, Stuller is one of the first two jewelry companies in the United States to install and utilize De Beers’ long-awaited Automated Melee Screening Device.

This device serves as the only of its kind available to the jewelry industry and is designed to detect all synthetics and simulants, verifying the authenticity of natural, melee diamonds ranging in size from 1.3mm (1pt) to 3.8mm (20pts). The instrument is fully automated handling up to 360 stones per hour or 500cts at any given time.

"This innovative machine offers us yet another way to give our customers trust, confidence and security when buying diamonds from Stuller," says Stanley Zale, Stuller’s vice president of diamonds and gemstones. "We’re proud to be among the first in our industry to use this technology and operate within the guidelines and best practices set forth by De Beers."

"Accurate detection and responsible disclosure of synthetics is vitally important today," says Jonathan Kendall, president of the International Institute of Diamond Grading and Research. "The De Beers Group International Institute of Diamond Grading & Research (IIDGR) is delighted to be working with Stuller to provide the detection equipment to screen for undisclosed synthetics, in the pursuit of maintaining trust and confidence in the diamond supply chain through to the consumer."

In addition to the new melee-scanning device, Stuller is also using the HRD D-screening process on any stones larger than 20 points to scan for synthetics.

For more information regarding the new machine, contact Stanley Zale at (800) 877-7777 ext. 4510.


Stuller, Inc. is headquartered in Lafayette, LA and was founded by Matthew Stuller in 1970. The DTC Sightholder provides a wide range of goods and services for jewelry professionals. Stuller’s core product categories include: diamonds, gemstones, finished jewelry, mountings, findings, bridal jewelry, tools, supplies and digital solutions.

10/22/2021 Market Prices:
Gold 1808.25 Platinum 1068.00 Silver 24.31