MajorsDec 19, 2025
MadaLuxe Group Acquires Ippolita The luxury goods company said founder Ippolita Rostagno will remain at the brand’s helm.
SourcingMar 02, 2016
Stuller Adds Lab-Grown Diamonds to its Inventory
The company, which is one of the largest suppliers in the United States, said it wants to “give jewelers every option they need to thrive.”
Stuller is now selling lab-grown diamonds. “We want to give jewelers every option they need to thrive and many of our customers already offer these diamonds with great success,” Stanley Zale said of the company’s decision to deal in the man-made stones.
Lafayette, La.--Stuller Inc., one of the largest jewelry manufacturers and suppliers in the United States, announced this week that it has added lab-grown diamonds to its product mix and, in fact, has been selling the stones since before the holidays.
Stuller is starting with a small assortment of the stones--as of Tuesday afternoon, the company had only 20-some lab-grown diamonds listed on its website, and Stuller’s Vice President of Diamonds and Gemstones Stanley Zale confirmed that that represents the entirety of what Stuller has available right now.
However, he said demand has been “stronger than anticipated” so far and that Stuller is continually adding more inventory.
Once available in limited quantities and sizes, lab-grown diamonds are becoming more mainstream as technology has improved to the point that diamond growers are able to produce steady streams of the stones, which are, in turn, getting picked up and sold by a growing number of suppliers and retailers.
Rogers & Hollands and Robbins Brothers both sell lab-grown diamonds. Over the summer, Helzberg Diamonds launched a pilot program offering white, yellow and pink lab-grown diamonds in select stores in four states, Virginia, Florida, Illinois and Arizona. Helzberg did not respond to inquiries about the current status of the program by press time.
Also, just last month, a total of 11 diamond growers announced the formation of the International Grown Diamond Association, a group designed to educate the public and stoke demand for the stones, in much the same way the world’s biggest diamond miners hope to buoy demand for natural diamonds via the Diamond Producers Association.
Zale said, in the end, Stuller opted to add lab-grown diamonds to its product mix because it wants to give jewelers’ choices.
“Whatever they are choosing, changing or creating with Stuller they can decide what center stone works best for their customer,” he said. “It might a natural diamond, a ruby or an emerald, a Forever One moissanite or even a lab-grown diamond.
“We’re here to help our customers succeed as jewelers.”
Stuller is sourcing the stones from a number of diamond growers though it declined to give the names of specific companies, noting that it is not its practice to name vendors except in cases where the merchandise is branded.
The lab-grown diamonds are being sold as loose stones and range in size from 0.34 to 2.15 carats, F to K and VS1 to
I2, ranges the company views as the “sweet spot” for color, clarity and size, Zale said.
They are, for the most part, 50 to 60 percent cheaper than comparable mined diamonds listed on RapNet and come with a report from the Gem Certification and Assurance Lab (GCAL), the New York lab run by Don Palmieri, and a unique inscription on the girdle.
Stuller said its lab-grown diamonds are kept in a separate vault, stored and shipped in a distinct blue acrylic box, and always are handled separately from its mined diamond inventory.
Zale also noted that Stuller has been screening all diamonds weighing more than 0.20 carats for the possibility of being lab-grown for several years now.
For smaller diamonds, the company purchased one of De Beers’ Automated Melee Screening machines in 2014 and Zale said they follow De Beers’ recommended screening protocol for its use.
“But,” he added, “melee screening is a challenge, so we also look to our suppliers to provide assurances and warranties that they are not using lab-grown (diamonds).”
They are, for the most part, 50 to 60 percent cheaper than comparable mined diamonds listed on RapNet and come with a report from the Gem Certification and Assurance Lab (GCAL), the New York lab run by Don Palmieri, and a unique inscription on the girdle.
Stuller said its lab-grown diamonds are kept in a separate vault, stored and shipped in a distinct blue acrylic box, and always are handled separately from its mined diamond inventory.
Zale also noted that Stuller has been screening all diamonds weighing more than 0.20 carats for the possibility of being lab-grown for several years now.
For smaller diamonds, the company purchased one of De Beers’ Automated Melee Screening machines in 2014 and Zale said they follow De Beers’ recommended screening protocol for its use.
“But,” he added, “melee screening is a challenge, so we also look to our suppliers to provide assurances and warranties that they are not using lab-grown (diamonds).”
More on Sourcing
The Latest
MajorsDec 19, 2025
LVMH Names New Bulgari CEOLaura Burdese, who joined the Italian luxury brand in 2022, will take on the role in July.
EditorsDec 19, 2025
2025 Jewelry Superlatives: A Yearbook-Style Year in Review The National Jeweler editors revisit the most noteworthy industry happenings and design trends from 2025.
Brought to you by
Impacting Tomorrow TodayHow Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.
AuctionsDec 19, 2025
Jean Schlumberger’s ‘African Cat’ Is Purr-Fection Need a gift for the cat lover who has everything? Look no further than our latest Piece of the Week.
Weekly QuizDec 18, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
AuctionsDec 18, 2025
Audemars Piguet Reclaims Historic Pocket Watch at AuctionIt purchased the “Grosse Pièce,” an ultra-complicated Audemars Piguet pocket watch from the ‘20s, for a record-breaking price at Sotheby’s.
Lab-GrownDec 18, 2025
Kira Jewels Debuts Custom Lab-Grown Diamond Jewelry ServiceThe lab-grown diamond grower now offers custom engagement and fashion jewelry through its Kira Custom Lab Jewelry service.
Brought to you by
Roseco Releases New Full-Line CatalogRoseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.
EditorsDec 18, 2025
Terry Chandler Looks Back on 40 Years of Opportunity, Change, and FriendsChandler got his start at Michelson Jewelers and has served as DCA president and CEO since 2001. He will retire at the end of the month.
WatchesDec 18, 2025
Bob’s Watches to Open Store in New York’s JFK AirportThe boutique is slated to open this week inside Terminal 8, offering pre-owned Rolex watches and more to international travelers.
Supplier BulletinDec 18, 2025
Cell Jammers Are Targeting Your Business. Here's How to Beat ThemSponsored by Digital Monitoring Products
CrimeDec 17, 2025
Man Pleads Not Guilty to Swallowing Fabergé PendantThe special-edition egg pendant ingested in a New Zealand jewelry store was recovered after a six-day wait.
EditorsDec 17, 2025
2025 Jewelry Rewind: The Best Piece of the Week PicksAssociate Editor Natalie Francisco plays favorites with Piece of the Week, selecting a standout piece of jewelry from each month of 2025.
CollectionsDec 17, 2025
Lucy Hale Stars in Jacquie Aiche’s Holiday CampaignThe “Love and Desire” campaign is inspired by the magic that follows when one’s heart leads the way, said the brand.
GradingDec 17, 2025
SSEF Announces 2025 Scholarship WinnersTwo awardees will receive free tuition for an educational course at the Swiss lab, with flights and lodging included.
MajorsDec 16, 2025
Pandora’s New CEO Will Step Up EarlyBerta de Pablos-Barbier will replace Alexander Lacik at the start of January, two months earlier than expected.
AuctionsDec 16, 2025
Suzanne Belperron, JAR Shine in Sotheby’s First Auctions at New HQSotheby’s held its first two jewelry sales at the Breuer building last week, and they totaled nearly $44 million.
Events & AwardsDec 16, 2025
TJS Now Accepting Scholarship Applications for 2026Winners will receive free registration and lodging for its fourth annual event in Detroit.
ColumnistsDec 16, 2025
Beyond Unboxing: Creative Reveals to Drive Reach and EngagementHere are six ideas for making more engaging content for Instagram Reels and TikTok, courtesy of Duvall O’Steen and Jen Cullen Williams.
Events & AwardsDec 16, 2025
Diamonds Do Good Names 2026 Award RecipientsThe honorees include a notable jewelry brand, an industry veteran, and an independent retailer.
CrimeDec 15, 2025
Men Receive Life Sentences in Home Invasion Murder of Jeweler Carlos Jose Hernandez and Joshua Zuazo were sentenced to life without the possibility of parole in the 2024 murder of Hussein “Sam” Murray.
Policies & IssuesDec 15, 2025
Sara Yood Named Co-Chair of RJC Standards CommitteeYood will serve alongside Eduard Stefanescu, the sustainability manager for C.Hafner, a precious metals refiner in Germany.
IndependentsDec 15, 2025
M.S. Rau to Open Store in AspenThe New Orleans jeweler is also hosting pop-up jewelry boutiques in New York City and Dallas.
AuctionsDec 12, 2025
13.54-Carat Paraíba Tourmaline Sets Records at Christie’sSet in a Tiffany & Co. necklace, it sold for $4.2 million, the highest price and price per carat paid for a Paraíba tourmaline at auction.
MajorsDec 12, 2025
David Webb Reveals Ice-Cold Holiday Window DisplayThe jeweler’s “Deep Freeze” display showcases its iconic jewelry designs frozen in a vintage icebox.
CollectionsDec 12, 2025
Piece of the Week: Oscar Heyman’s Sphene RingTake luxury gifting to new heights this holiday season with the jeweler’s showstopping 12-carat sphene ring.
Events & AwardsDec 12, 2025
IGI Jewelry Design Contest Now Accepting SubmissionsThis year's theme is “Unveiling the Depths of the Ocean.”
