AuctionsJun 18, 2026
Paraíba Tourmalines Sell for $3.4M at Sotheby'sThe recent high jewelry auction, which also featured the sale of a 10-carat blue diamond, was “a celebration of color.”
SourcingJul 10, 2014
De Beers melee screeners go to Tasaki, Rosy Blue
Sightholders Tasaki and Rosy Blue, along with Kiran Gems in Mumbai, are among the first to begin using the new Automated Melee Screening device created by De Beers Technologies UK to separate natural melee from lab-grown.
De Beers is in the process of installing its Automated Melee Screening devices at sightholders’ facilities located in key diamond trading centers around the world: Antwerp, Mumbai, Tel Aviv and Hong Kong.
London--Sightholders Tasaki and Rosy Blue, along with Kiran Gems in Mumbai, are among the first to begin using the new Automated Melee Screening device created by De Beers Technologies UK to separate natural melee from lab-grown.
The International Institute of Diamond Grading & Research (IIDGR), a De Beers-owned and -operated laboratory in Antwerp, said this week that the first installation of and training on the AMS devices took place at the end of June at Tasaki and Rosy Blue in Japan.
Though De Beers previously said it planned to lease the devices, they now are being sold to sightholders for $55,000 with a three-year support and maintenance charge of $10,000 a year.
RELATED CONTENT: De Beers deploys first wave of melee screeners
De Beers Technologies UK developed the AMS devices, which screen round colorless or near-colorless diamonds as small as one point and up to 0.20 carats to determine if they are natural diamonds.
The device can handle as much as 500 carats of melee at once and automatically feeds the stones, table-down, into a measurement station, meaning that the device can run unattended once the stones are loaded.
The machines can screen about 360 stones per hour. Following testing, the diamonds automatically are dispensed into bins indicating if they are natural diamonds, need further testing or are not diamonds at all.
Following the installation of the machines at Rosy Blue and Tasaki, De Beers is beginning a phased rollout of the AMS devices to sightholder facilities in Antwerp, Mumbai, Hong Kong and Tel Aviv, with IIDGR technicians working in all these locations to install the devices and train sightholders on how to use them.
Plans call for the diamond miner and marketer to install an AMS device at the IIDGR in September, making its melee screening available to the trade more broadly.
Editors' Picks
Sponsored by
More on Sourcing
The Latest
CollectionsJun 18, 2026
Michelle Obama Wears Almasika Earrings Symbolizing Feminine PowerShe wore the “Le Cauri Endiamanté” earrings, our Piece of the Week, in the Obamas’ first dual portrait for the Obama Presidential Center.
PodcastsJun 17, 2026
Episode 6: Las Vegas 2026-Trends, Traffic, Broken BathroomsCouture’s Michelle Orman joins Amanda Gizzi and Michelle Graff for this special post-Market Week episode of My Next Question.
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center StageColored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.
GradingJun 17, 2026
SSEF Issues Warning on Refilled EmeraldsThe lab is seeing emeralds with filler added post-testing enter the market, accompanied by reports that indicate little to no treatment.
Weekly QuizJun 17, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
WatchesJun 17, 2026
Patek Philippe’s ‘Visionary’ Leader Philippe Stern Dies at 88 The third generation of the Stern family to head Patek Philippe, he navigated the “quartz crisis” and preserved the brand’s independence.
MajorsJun 17, 2026
James Avery to Revamp In-Store Retail ExperienceThe Texas-based jeweler is gradually rolling out a new experience-forward layout in its stores.
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce SolutionsDCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.
MajorsJun 17, 2026
Seahawks’ Super Bowl Ring Blends Meaningful Design, Technical CraftsmanshipThe Super Bowl LX champions were honored with diamond and blue sapphire rings by Jason of Beverly Hills.
Policies & IssuesJun 17, 2026
Community for Ethical Jewelry Names New Executive DirectorMarianna Smirnova previously spent a decade working with the Responsible Minerals Initiative, in addition to other relevant roles.
MajorsJun 16, 2026
5 Things to Know About the 2026 NBA Championship TrophyThe New York Knicks took home the Larry O'Brien Trophy crafted by Tiffany & Co.
TrendsJun 16, 2026
Post-Vegas Jewelry Trend Report: Big Beads, Western Flair, White MetalsAssociate Editor Natalie Francisco lists the trends she spotted during Jewelry Market Week that will dominate the second half of 2026.
MajorsJun 16, 2026
Sasha Primak Hires New Design DirectorThe manufacturer has tapped Alicia Arnold, the former director of custom design at Tiny Jewel Box.
IndependentsJun 15, 2026
DeBoulle Diamond & Jewelry to Renovate Dallas FlagshipThe revamped, elevated space will feature a two-story Patek Philippe atelier and a rooftop patio for parties.
WatchesJun 15, 2026
G-Shock, Coca-Cola Partner on Bottle-Inspired WatchThe special-edition piece marks the 140th anniversary of the iconic beverage brand.
TrendsJun 15, 2026
Amanda’s Style File: Tiny Charms Are TrendingHere are 13 small charms to inspire your layered looks this summer.
AuctionsJun 12, 2026
16th-Century ‘Hogback’ Diamond Ring Going Up for Auction in LondonFound by a metal detectorist, the ring likely belonged to a wealthy, possibly royal, owner, said Noonans.
CollectionsJun 12, 2026
Chouette Designs To Launch Collection Celebrating All Types of LoveOur Pride Month Piece of the Week, the “Margaux” ring, is part of the wife-and-wife team’s new “Lovestoned” collection.
Events & AwardsJun 12, 2026
CBG Announces Plans for Phoenix ShowThe group has named the keynote speaker and announced a new pavilion for its next event, which is slated for September.
EditorsJun 11, 2026
This Was the Best Animal Jewelry in Las Vegas From lions and hippos to snails and fish, Senior Editor Lenore Fedow wrangles her picks for cutest jewelry critters in Las Vegas.
MajorsJun 11, 2026
Former Cartier Creative Director To Head Chanel’s Jewelry Creation StudioMarie-Laure Cérède will join Chanel as the new director of its jewelry creation studio, starting in October.
Lab-GrownJun 11, 2026
Smiling Rocks’ ‘Wish Jar’ Generates 100+ Wishes in Las Vegas At the JCK show, the lab-grown diamond brand teamed up with Jewelers for Children to support Make-A-Wish India.
SourcingJun 11, 2026
Signet Jewelers Exec Joins Diamonds Do Good BoardIlana McCabe is Signet’s vice president of public relations and brand communications.
AuctionsJun 10, 2026
31.62-Carat ‘Azure Blue’ Diamond Sells For $8M+ at Christie’sIt was a banner day for blue gemstones, with another blue diamond topping $8 million and a 41-carat sapphire going for $2.3 million.
MajorsJun 10, 2026
Saks Global Receives Bankruptcy Court Approval for ReorganizationThe approval means the retailer is on track to exit bankruptcy proceedings this summer.
CrimeJun 10, 2026
2 Suspects Arrested in Texas Jewelry Store RobberyThe men are believed to be part of the group of several masked suspects that robbed Marc Robinson Jewelers in April.
CollectionsJun 10, 2026
Sylvie Debuts ‘Elevated’ Bridal Collection Inspired By Designer’s RingThe bridal-focused brand is also launching its Custom Atelier this summer, a digital custom design tool for its authorized retailers.
