DiamondBuzz
De Beers launches DiamondProof; distinguishes naturals from LGDs within seconds
De Beers has launched a diamond verification device aimed specifically at retailers. DiamondProof distinguishes natural gems from LGD in store within seconds as the customer looks on. DiamondProof distinguishes between the chemical composition of natural diamonds and LGD. De Beers says fewer than 1 per cent of diamonds will need additional evaluation and it guarantees that no synthetic diamonds will be mistakenly identified as natural.
De Beers Group announced that its innovative retail-facing diamond verification device, DiamondProof, has landed in select retail stores for the first time, giving consumers the ability to witness just how quickly the device can distinguish natural diamonds from non-natural diamonds, such as laboratory-grown diamonds (LGDs) and diamond simulants, providing a tool for retailers to help educate their customers on the differences between natural diamonds and other products. With research showing that almost half of consumers are unaware that LGDs can be readily detected, this easy-to-use device will enable retailers to show their customers just how quickly natural diamonds can be identified.
The first DiamondProof prototype instrument was unveiled at the JCK show in Las Vegas in June 2024 and has been developed to rapidly and easily screen both loose diamonds and those set in jewellery. With a zero percent ‘false positive rate*,’ the device will never mistake a lab-grown diamond as a natural diamond and delivers results within seconds.

Sandrine Conseiller, CEO of De Beers Brands, said: “Natural diamonds and LGDs are two fundamentally different products. Natural diamonds are rare, one-of-a-kind miracles of nature that come to us from the earth through heat, pressure and time. This incredible journey is what makes them the ultimate marker of life’s most profound emotional moments. Consumers should be able to have confidence in such a meaningful purchase, and DiamondProof allows retailers to offer them greater peace of mind. We are in a new era of transparency at retail, and customers deserve to know what they are buying.”
DiamondBuzz
Final Sale Of The Season: High Jewelry Auction In New York
Culminates A Global De Beers X Sotheby’s Collaboration Series, Following Hong Kong and Geneva
Sotheby’s and De Beers conclude their 2026 international auction collaboration in New York, following acclaimed presentations and strong results in Hong Kong and Geneva. The final sale presents a tightly curated group of exceptional natural diamonds, reflecting a year defined by rarity, craftsmanship and provenance.
The New York auction marks the culmination of a cross-continental journey, with momentum building at each stage as collectors responded confidently to these exceptional natural diamonds. Here, in New York, diamonds intersect with modern identity, creativity and personal storytelling. Buyers will have the opportunity to acquire two pear-shaped, D-color diamond rings, alongside a magnificent 11.33-carat, old-mine brilliant-cut D-color, Type IIa diamond.



Diamonds are not simply precious objects, but carriers of cultural meaning. Formed billions of years ago, they embody geological history while accruing layers of human narrative—as symbols of love, empowerment and identity. Across each stop from Asia to Europe to the United States, the auctions have highlighted how diamonds continue to evolve as cultural artefacts, shaped by craftsmanship, heritage and contemporary self-expression.
In Hong Kong, diamonds are deeply rooted in traditions of trade, symbolism and philosophy. The sale featured a 3.03-carat pear-shaped diamond ring and a pair of brilliant-cut diamond earrings totaling 4.01 carats. The highlight was the extraordinary De Beers Jwaneng 28.8—a 28.88-carat brilliant-cut, D-color, flawless, Type IIa diamond.
In Geneva, the conversation shifted to connoisseurship and the culture of collecting. Notable stones included a 1.10-carat light pink oval-cut diamond, a 1.06-carat very light pink diamond, and a perfectly matched pair of brilliant-round diamonds, each weighing 18.38 carats—one D-color, flawless, and the other internally flawless.
This evolving cultural lens is mirrored in shifting patterns of ownership. Increasingly, collectors are acquiring diamonds not only as adornment or investment, but as expressions of individuality. Nearly half of global diamond purchases are now made by women for themselves, signalling a broader redefinition of value—rooted in independence, self-purchase and personal significance.
To further extend the impact of the auctions, Peace Parks will receive part of the proceeds, highlighting how natural diamonds can help contribute meaningfully to the landscapes and communities from which they originate.
As the season closes, diamonds continue to bridge deep history and contemporary culture, reaffirming their place as natural masterpieces and enduring symbols.
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