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

The sample was ‘deliberately challenging.’

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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 diamondproducers.com/ASSURE.

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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.”

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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 diamondproducers.com/ASSURE to learn more about the test results and to download guidelines on how to ensure pipeline integrity.

Read more at Rapaport News

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Jewelry Chain Looks to Build $13M Headquarters

It will employ about 100 people.

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James Avery, a Texas-based manufacturer that operates 88 stores, is looking to open a second headquarters at a cost of $13 million.

The facility would be located in Cedar Park, TX, KXAN-TV and the Austin Business Journal report.

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James Avery Craftsman Inc. is seeking more than $500,000 in economic incentives for the project.

As part of the agreement, the headquarters would need to have a payroll of about $4.9 million by 2025. It would also need to consist of at least 35,000 square feet.

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The Business Journal reports that the facility would have more than 100 employees.

Kerrville-based James Avery, known in part for its Christian-themed jewelry, is particularly popular in its home state of Texas, where it operates 80 stores.

Read more at KXAN-TV

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Video: 3 Millennial Couples Reveal Their True Thoughts On Lab-Grown Diamonds

MVI Marketing has released a new video.

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MVI Marketing has released a new video in which three millennial couples reveal what they think about lab-grown diamonds.

The couples interviewed by MV Eye are all actively shopping for engagement rings.

In the video, which is under three minutes long, they’re asked about topics such as their budget, their shopping preferences and their views on lab-grown diamonds.

Watch the video:


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GIA Identifies Mixed Natural-Synthetic Diamond

It ‘could be a new type of product entering the market.’

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The Gemological Institute of America had identified a stone that is a composite of synthetically grown and natural diamond.

It was described as a 0.64-carat fancy grayish greenish blue cushion modified brilliant. It turned out to have a “CVD synthetic diamond overgrowth,” according to GIA, which described the finding in the Spring 2019 issue of Gems & Gemology, its quarterly scientific journal.

The grayish greenish blue was caused by the gray and blue components from the CVD layer and the yellow from the substrate.

“The resulting color was likely the main motivation for growing the CVD layer on top of the natural diamond, though the extra weight gained could also be a factor,” according to the article.

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GIA added: “With the second of these composites seen at GIA, this could be a new type of product entering the market.

“Earth-grown diamonds with synthetic diamond grown on the surface require extra scrutiny due to the presence of natural-looking features, both spectroscopic and gemological. Careful inspection still reveals the presence of synthetic indicators, which expose the true nature of the diamond.”

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