Supplier BulletinMay 22, 2025
How to Put Natural Diamonds Back in the SpotlightSponsored by GCAL by Sarine
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
CrimeMay 22, 2025
NY Jeweler Sentenced in Shoving Death of Colleague at IJO ShowDavid Walton will serve three years’ probation after an incident in a hotel bar led to the death of West Virginia jeweler David Ettinger.
FinancialsMay 22, 2025
Watches of Switzerland’s Full-Year U.S. Sales Climb 14% The retailer also provided an update on how the tariffs situation in the U.S. is affecting its business.
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the GlobeGain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.
IndependentsMay 22, 2025
Adeler Jewelers Celebrates 50 YearsThe family-owned jeweler in Great Falls, Virginia, will be celebrating its golden jubilee with a year’s worth of events.
Weekly QuizMay 22, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
Events & AwardsMay 22, 2025
Jose Hess Design Awards Announce JudgesThe nonprofit elected five judges who will decide the winners of its design competition.
MajorsMay 22, 2025
MJSA Releases 2025-2026 Buyer’s GuideThis year’s edition includes articles on the favorite tools of notable designers, evaluating when to outsource production, and more.
Brought to you by
Watch: The Winston Red: GIA Examines the Smithsonian’s Newest AdditionSupplier Spotlight Sponsored by GIA
CollectionsMay 21, 2025
Bulgari Highlights Its Colorful Past in Phenomenal ‘Polychroma’ CollectionThe jeweler’s high jewelry collection features extraordinary gemstones, like a 241.06-carat emerald and the world’s fourth-largest spinel.
ColumnistsMay 21, 2025
Edahn’s Take: Analyzing the 2025 ‘$100 Million Supersellers’ List In a special column for the State of the Majors, Edahn Golan breaks down what the top-performing fine jewelry sellers are doing right.
MajorsMay 21, 2025
Beyoncé Dons Brilliant Earth Necklace During Cowboy Carter TourThe bolo tie necklace is inspired by “Queen Bey” and set with a nearly 15-carat black diamond.
MajorsMay 20, 2025
Annie Doresca to Lead DCA as New CEO, PresidentCurrent Diamond Council of America President and CEO Terry Chandler is set to retire in January 2026.
FinancialsMay 20, 2025
QVC Group to Voluntarily Delist from NasdaqThe company's Series A shares will continue to trade following a reverse stock split while its Series B shares will be delisted.
ColumnistsMay 20, 2025
Peter Smith: Leading Through ChangeCommunicating clearly with your staff is key to navigating turbulent times, writes columnist Peter Smith.
IndependentsMay 20, 2025
Luis Morais Opens Flagship, Launches Collection Celebrating 25 YearsThe “Inner Journey” collection debuted as the brand celebrated its 25th anniversary, with designs inspired by Morais’ journey.
MajorsMay 20, 2025
Tanishq Opens Seventh U.S. StoreTanishq is expanding its presence in the United States with a new store in Santa Clara, California, which is its largest in the country.
FinancialsMay 19, 2025
Jewelry Sales a Standout for Richemont in 2024Sales for Richemont’s four jewelry brands increased 8 percent, while watch sales picked up toward the end of the year.
Events & AwardsMay 19, 2025
NAJA Opens Scholarship Applications for 2025Two scholarships are available, one for new and non-members and another for NAJA certified members.
IndependentsMay 19, 2025
Day’s Jewelers to Open Ninth LocationThe retailer’s new flagship is set to open in October at the Tuscan Village development in Salem, New Hampshire.
MajorsMay 16, 2025
Saks Fifth Avenue, Amazon Partner on Luxury Online StorefrontPlus, parent company Saks Global announces plans to cut ties with up to 600 vendors.
Recorded WebinarsMay 16, 2025
Watch: Physical Retail Is Not DeadPeter Smith joined Michelle Graff to chat about the state of brick-and-mortar stores and share a few book and podcast recommendations.
CollectionsMay 16, 2025
Piece of the Week: Tejen’s ‘Candy Bowl’ Torque NecklaceThe necklace features a candy-colored Australian white opal in 18-karat Fairmined gold, as the brand was named a Fairmined ambassador.
Supplier BulletinMay 15, 2025
Treasure Hunting at the Las Vegas Antique Jewelry and Watch ShowSponsored by the Las Vegas Antique Jewelry and Watch Show
AuctionsMay 15, 2025
'The Mediterranean Blue' Diamond Sells for $21M at Sotheby’sA private American collector purchased the 10-carat fancy vivid blue diamond.
CollectionsMay 15, 2025
Jessica McCormack’s ‘Fruit Salad’ Collection Is Fresh for SummerThe designer has taken the appeal of freshly picked fruit and channeled it into a capsule collection of earrings, necklaces, and pendants.
SourcingMay 15, 2025
Tariffs Take Toll on India’s Gem and Jewelry Industry in April The country’s gem and jewelry exports fell 5 percent year-over-year last month, while imports declined 18 percent.
Policies & IssuesMay 15, 2025
State of Retail: How to Better Serve Customers With DisabilitiesAround 54 million Americans and counting live with a disability. Here’s how to make your jewelry store and website more accessible.
