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Here’s How Lab-Grown Diamond Detectors Stacked Up in Recent Testing

The sample was ‘deliberately challenging.’




Three detectors conclusively identified all lab-grown diamonds in a recent study, Rapaport News reports.

A collaboration by the Diamond Producers Association and Signet Jewelers – the Assure Program – published the results from the independent performance tests of Diamond Verification Instruments in the Assure Directory on

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One of the machines identifying all lab-grown diamonds was the Sherlock Holmes machine by Yehuda, which sells for about $6,500.

The De Beers DiamondView identified 100 percent of lab-grown diamonds. It sells for about $35,000.

The Presidium Synthetic Diamond Screener II identied all lab-grown diamonds. But the machine, which sells for $600, had a false-positive rate of nearly 16 percent. It “works by screening out type IIa colorless diamonds, as those are likely to be synthetic, rather than actually identifying lab-growns,” according to Rapaport.

The sample was described as “deliberately challenging.”


Several other models referred all lab-grown diamonds for additional testing, Rapaport explains. This group, which is not designed to detected lab-growns conclusively, included:

  • De Beers’ SYNTHdetect ($17,000).
  • De Beers’ DiamondSure ($18,200).
  • Gemological Institute of America’s iD100 ($4,995).
  • HRD Antwerp’s M-Screen+ ($63,000).

Through the Assure Directory, trade participants can access objective and third-party-verified information on the relative performance of Diamond Verification Instruments and guidance on how to ensure that their business is protected from undisclosed laboratory-grown diamonds.

Visit the ASSURE Directory on to learn more about the test results and to download guidelines on how to ensure pipeline integrity.

Read more at Rapaport News



This Third-Generation Jeweler Was Ready for Retirement. He Called Wilkerson

Retirement is never easy, especially when it means the end to a business that was founded in 1884. But for Laura and Sam Sipe, it was time to put their own needs first. They decided to close J.C. Sipe Jewelers, one of Indianapolis’ most trusted names in fine jewelry, and call Wilkerson. “Laura and I decided the conditions were right,” says Sam. Wilkerson handled every detail in their going-out-of-business sale, from marketing to manning the sales floor. “The main goal was to sell our existing inventory that’s all paid for and turn that into cash for our retirement,” says Sam. “It’s been very, very productive.” Would they recommend Wilkerson to other jewelers who want to enjoy their golden years? Absolutely! “Call Wilkerson,” says Laura. “They can help you achieve your goals so you’ll be able to move into retirement comfortably.”

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