Events & AwardsApr 25, 2024
Alexis Padis Takes Over as AGS Board President Padis succeeds Lisa Bridge, marking the first time the organization has had two women board presidents in a row.
GradingMay 11, 2016
Stuller acquires De Beers’ melee screener
Sightholder and supplier Stuller Inc. is one of two United States companies now using De Beers’ Automated Melee Screening device, which is designed to tell small lab-grown diamonds from natural ones.
Stanley Zale, Stuller’s vice president of diamonds and gemstones, said Monday that the company purchased one of the machines and received it two weeks ago. While Stuller did consider using the machine to test stones for their retail customers, the company has opted to use it only for its own inventory.
Stuller began running melee through the AMS device right away and, so far, hasn’t found a single lab-grown diamond among the thousands of stones it’s scanned, Zale says.
He says the same is true for the HRD D-screening the company has been doing for years on diamonds 20 points and larger to check for synthetics. This process allows Stuller to detect if a diamond is Type IIa, which is rare in nature but common among lab-grown diamonds, and send it to a grading laboratory for further testing if so.
To date, none of those diamonds have come back as lab-grown either, though Zale says having the HRD D-screening and AMS device are necessary today. “This is an insurance policy for the integrity of our business,” he says.
RELATED CONTENT: De Beers deploys first wave of melee screeners
De Beers began deploying its AMS device in early July to sightholders around the world. Mumbai-based Kiran Gems along with Tasaki and Rosy Blue in Japan are among those companies using the machine. De Beers could not release the name of the second U.S. company to have one of the AMS devices by press time.
The AMS device screens stones between 1 point (1.3 mm) and 20 points (3.8 mm) in size, automatically feeding the stones table-down into a testing station and then dispensing them into separate bins indicating if they pass (are natural diamonds), need further testing, or are not diamonds at all.
It takes up to 500 carats of colorless or near-colorless melee at a time and scans one stone every 10 seconds. The cost of the AMS device, which can be left to run
Editors' Picks
Sponsored by
unattended, is $55,000 plus a three-year, $10,000-a-year support and maintenance charge, according to De Beers.
Stanley said in receiving the machine from De Beers, Stuller also receiving a set of statistical sampling guidelines for testing melee--i.e., for every “X” number of carats of melee, run “X” percentage through the machine--noting, “You cannot check every stone. It’s not reasonable. It’s not realistic.”
More on Grading
The Latest
EditorsApr 25, 2024
5 Tips for Creating Fans from the Top (Savannah) Banana Jesse Cole, founder of Fans First Entertainment, shared the “five Es” of building a fan base during his AGS Conclave keynote.
WatchesApr 25, 2024
Audemars Piguet and John Mayer Partner on Limited Edition WatchThe Royal Oak Perpetual Calendar "John Mayer" was celebrated at a star-studded party in LA last week.
Brought to you by
The Blueprint for Success in Scalable, Personalized Jewelry RetailWith Ho Brothers, you can unlock your brand's true potential and offer customers the personalized jewelry experiences they desire.
SourcingApr 25, 2024
De Beers Lowers Production Guidance for 2024The announcement came as the company reported a 23 percent drop in production in Q1.
Weekly QuizApr 26, 2024
This Week’s QuizTest your jewelry news knowledge by answering these seven questions.
MajorsApr 25, 2024
Detroit Lions’ QB Jared Goff Keeps Going to JaredThe three-time Pro Bowler continues to partner with the retailer, donating to a Detroit nonprofit and giving watches to fans.
CrimeApr 24, 2024
Jewelry Crime Declines Significantly, But Dollar Losses Remain High A double-digit drop in the number of in-store crimes was offset by a jump in off-premises attacks, JSA’s 2023 crime report shows.
Brought to you by
How Jewelers of America Represents Your BusinessFor over 30 years, JA has advocated for the industry, fought against harmful legislation and backed measures that help jewelry businesses.
CollectionsApr 24, 2024
Pippa Small Announces ‘Venus’ CollectionInspired by the Roman goddess of love, the designer looked to the sea for her new collection.
FinancialsApr 24, 2024
Kering’s Jewelry Brands a Bright Spot in Tough Q1The luxury titan posted declining sales, weighed down by Gucci’s poor performance.
Events & AwardsApr 24, 2024
JCK Industry Fund Announces 2024 Grant RecipientsThe selected nine organizations have outlined their plans for the funds.
SourcingApr 24, 2024
Rio Tinto’s Q1 Production Drops Amid Pause to Honor Lost Colleagues The mining company’s Diavik Diamond Mine lost four employees in a plane crash in January.
WatchesApr 24, 2024
These Are Rolex’s New Watches for 2024 The crown introduced a dozen timepieces in Geneva, including a heavy metal version of its deep-sea divers’ watch.
ColumnistsApr 23, 2024
The Smart Lab: Advanced Email Marketing Strategies for Mother’s DayEmmanuel Raheb recommends digging into demographic data, customizing your store’s communications, and retargeting ahead of May 12.
IndependentsApr 23, 2024
Hannoush Jewelers Opens New Store in New York Located in the town of Queensbury, it features a dedicated bridal section and a Gabriel & Co. store-in-store.
SourcingApr 23, 2024
Lucapa Sells 3 Diamonds for $10.5M in First Lulo Tender of 2024A 203-carat diamond from the alluvial mine in Angola achieved the highest price.
CollectionsApr 22, 2024
Jacquie Aiche’s New Campaign Stars Adam Levine, Behati PrinslooThe “Rebel Heart” campaign embodies rebellion, romance, and sensuality, the brand said.
EditorsApr 22, 2024
The 22 Best Quotes from AGS Conclave 2024 Editor-in-Chief Michelle Graff shares the standout moments from the education sessions she attended in Austin last week.
SourcingApr 22, 2024
Virtual Diamond Boutique Rebrands as ‘VDB’The overhaul includes a new logo and enhanced digital marketplace.
MajorsApr 22, 2024
Signet Raises Nearly $9M for St. Jude Children’s Research HospitalThe money will go toward supporting ongoing research and aftercare programs for childhood cancer survivors.
CollectionsApr 19, 2024
Piece of the Week: Retrouvaí’s Treasure NecklaceA new addition to the “Heirloom” collection, this one-of-a-kind piece features 32 custom-cut gemstones.
CrimeApr 19, 2024
Grand Jury to Hear Case Against Jeweler Charged in Fatal Shove Following IJO ShowLast month in Dallas, David Walton pushed another jeweler, David Ettinger, who later died.
MajorsApr 19, 2024
Unique Designs Acquires China PearlThe move will allow the manufacturing company to offer a more “diverse and comprehensive” range of products.
SourcingApr 18, 2024
Diamond Trade Remains Cautious Amid Economic UncertaintyDe Beers’ rough diamond sales were down 18 percent year-over-year in its latest round of sales.
Supplier BulletinApr 18, 2024
Discover History’s Hidden Gems at the Las Vegas Antique Jewelry & Watch ShowSponsored by the Las Vegas Antique Jewelry & Watch Show
WatchesApr 18, 2024
Watch E-tailer Collectability Hires Kelly YochThe Patek Philippe expert will serve as personal curator for the brand-focused company.
WatchesApr 18, 2024
TAG Heuer Opens Its Largest Standalone Boutique at SeaThe 553-square-foot shop is aboard the Carnival Jubilee cruise ship.
