Senior Editor Brecken Branstrator chooses the pieces she’d most want to see in person.
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.”

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
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).”
The Latest

The actress joins Zendaya and others in a new advertising campaign.

Owner Steve Delzio shares his thoughts on retirement after nearly five decades in the jewelry industry.

When it comes to knowing the identity and quality of your pearls, count on GIA as your independent pearl experts.

“I Fear for This Boy” takes readers through the ups and downs of his business and is available for pre-order now.


“Today’s Wedding Jewelry Consumer” shares data about engagement ring market size, lab-grown and natural diamonds, and more.

Columnist Lilian Raji wants to walk you through the customer journey. But first, she’d like you to answer a few questions.

Advanced technology levels the playing field, helping jewelers give customers what they want.

Several Couture brands have partnered with Platinum Guild International ahead of the jewelry trade show.

The jewelry company is moving into bridal just a month after branching out into the watch world.
The Generating Community Impact fundraiser on June 11 will feature Karine Bah Tahé of Blue Level Training.

Kaiser, whose illustrious career spanned decades, died suddenly on Friday.

The family-owned jeweler is relocating its Braintree, Massachusetts, store to a new space.

He will step into the retailer’s newly created role of chief development officer.

GemIntro is meant to give a broad introduction to gems and gemology.

Three industry experts discuss “recycled” gold vs. mined, their challenges and benefits, and how jewelers can navigate the area.

Cartier, Van Cleef & Arpels, and Buccellati put on stellar performances.

The New York jeweler made this incredible, colorful Art Deco bracelet featuring tropical birds in 1927.

From a slowdown in sales growth to rising costs, Fruchtman Marketing outlines its expectations for the second half of the year.

Once a part of Julius Klein Group, the diamond company combines its direct supply and cutting expertise with a keen eye to the future.

The two have partnered on a capsule collection.
John A. Green of retailer Lux Bond & Green and Niveet Nagpal of Omi Privé have joined the board of directors as of May 18.

The retailer also said demand for Rolex, Patek Philippe, and Audemars Piguet watches continues to exceed its supply.

The auction house’s upcoming sale also includes collections from American heiresses.

The Connecticut jeweler reflected on five decades in the industry and what the future holds for the family business.

The chapter has organized a day trip to the Sterling Hill Mine and Museum in Ogdensburg on Saturday, May 21.

The stones come from a deposit close to Mahenge and have been on the market for several months.