De Beers Group has joined forces with Stuller, the largest jewelry manufacturer in the United States, to expand the distribution of its DiamondProof verification device throughout the U.S. retail market.
Announced on Monday, the partnership names Stuller as the official sales distributor for DiamondProof.
This collaboration follows the device’s retail debut in February and is aimed at making diamond-verification technology more accessible to jewelers across the country.
DiamondProof is designed to quickly and accurately identify natural diamonds, helping prevent the misclassification of lab-grown stones.
Suitable for both retail counters and back-office use, the device offers real-time verification that can be shown directly to customers, enhancing transparency and trust.
Under the agreement, Stuller will handle not only sales and distribution but also technical support and after-sales service, ensuring smooth adoption for retailers.
De Beers described Stuller as an “ideal distributor” given its extensive network and deep industry expertise.
“This collaboration is a significant step forward as we aim to empower retailers with the tools and support they need to enhance customer confidence in natural-diamond purchases and promote trust and transparency in the industry,” said Sarandos Gouvelis, Senior Vice President of Pricing, Product and Technology Development at De Beers.
