Gabrielle “Coco” Chanel is a character in the “Coco Game” collection of watches and the queen in its first haute horlogerie chessboard.
De Beers, Circa Team Up to Screen Pre-Owned Diamonds
The partnership brings DeBeers back into the secondhand market after it closed its own diamond buyback service in April.

New York—De Beers Group will collaborate with secondhand jewelry and watch buyer Circa to screen its pre-owned diamonds, De Beers announced Thursday.
Circa said it will use De Beers Group Industry Services’ (the lab formerly known as the International Institute of Diamond Grading & Research) SynthDetect machine in its offices to ensure the diamonds in its jewelry are natural and not lab-grown.
“By partnering with De Beers Group, the pre-eminent name in diamonds, and by using its cutting-edge diamond detection equipment in our locations, our buyers are able to assure sellers that their diamonds are natural,” Circa CEO Oren Schenider said in a press release.
Schneider added the equipment will allow Circa to identify, and avoid purchasing, lab-grown diamonds at the time they are submitted.
The move brings DeBeers indirectly back into the secondhand market—and into contact with its consumers—after the shuttering of the International Institute of Diamond Valuation, its own buyback program, in April.
As part of the deal with Circa, the two companies will hold joint educational consumer-facing events in the United States, Asia and Europe to give customers a first-hand look at how the detection process works, and offer advanced diamond appreciation courses.
When asked Thursday if its deal with Circa should be seen as an indication that lab-grown diamonds have become more prevalent on the secondhand market, De Beers spokesman David Johnson said the company sees no evidence of that.
He said the lab-grown diamond market is around 1 percent of the size of the natural diamond market, adding that man-made diamonds “do not endure in value like natural diamonds and this discourages the development of a secondhand market.”
Circa has 12 physical locations, including offices in New York, Los Angeles, Madrid and Hong Kong.
Editor’s note: This story was updated post-publication to correct an error. Previously, the story described Circa as a seller of pre-owned jewelry and watches, but the company is a buyer of pre-owned jewelry and watches.
The Latest

The annual list honors rising professionals on the retail and supply sides of the jewelry industry.

Seized in Kentucky, the packages include fake Cartier, Tiffany & Co., Chanel, and Fendi jewelry.

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

Rodolfo Lopez-Portillo faces 25 years to life in prison after being found guilty in the March 2022 beating death of Arasb Shoughi.


“Jewelry Creators: Dynamic Duos and Generational Gems” highlights the relationships among 22 influential designers, brands, and gem dealers.

The AJS Spring 2027 show will be held in Savannah, Georgia, with future shows taking place in other Southeast cities.

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

The jewelry retailer plans to open 20 new stores this year and expand into new product categories.

Flower motifs are the jewelry trend blooming amongst the new collections that debuted this spring.

The retailer reported an 8 percent decline in annual sales as it struggles under the weight of billions of dollars of debt.

The “Devil” drop earrings, our Piece of the Week, are part of designer Edina Kiss’ new namesake jewelry line that she will show at Couture.

The alert states that burglary crews are targeting jewelry businesses and details how jewelers and refineries can protect themselves.

The “watchmaker of shapes” debuted the reworked version of the vintage sports car-inspired timepiece at Watches & Wonders.

As demand for jewelry retail coaching grows, the company has established a dedicated business coaching leadership team.

The “Mountings 2026-2027” catalog showcases Stuller’s largest and most diverse assortment to date with more than 400 new mounting styles.

Sally Morrison and Mark Klein discuss De Beers’ first beacon in 16 years and the mistake the industry made with lab-grown diamonds.

McKenzie spent 45 years with Spark Creations and is remembered for being kind, dedicated, and hardworking.

Rolex focused exclusively on the Oyster Perpetual this year, as the model is celebrating its 100th anniversary.

The luxury giant discussed the Middle East conflict and its transformation plans, hinting at a stronger jewelry presence in North America.

“Diamond Divas,” a social media reality series by Shahla Karimi Jewelry, is nominated in the “Best Social: Fashion & Beauty” category.

Plus, how Saks Global’s bankruptcy affected the luxury giant’s first quarter.

Presented by Mason-Kay Jade, the summit, in its second year, will again be held during the Monterey Bay Jade Festival.

The group has announced its lineup of speakers and a new “Rising Stars” pavilion.

The “Carbon Form” collection explores the contrast between high and low materials, using rubber cord alongside 18-karat gold and gemstones.

The program provides essential funding to organizations for projects that enhance the jewelry industry.

The jewelry trade show is launching its first open-to-the-public event in Coconut Grove this November.





















