A Historic Diamond for a Historic Milestone
As London Jewelers celebrates its 100th anniversary, the iconic family-owned luxury jeweler has unveiled a truly extraordinary symbol of its legacy: a remarkable 63-carat natural rough diamond that will be transformed into a one-of-a-kind 20.26-carat D Flawless Old Mine Cushion-cut diamond.
Revealed during an intimate gathering at JCK Las Vegas, the project represents far more than a rare gemstone. It is a tribute to a century of craftsmanship, family tradition, and enduring relationships that have defined London Jewelers since its founding in 1926.
A Diamond Unlike Any Other
Natural diamonds of this caliber are exceptionally rare. The rough crystal will ultimately become a 20.26-carat D Flawless diamond—one of the most coveted classifications in the world of fine jewelry. The final carat weight was intentionally selected to commemorate London Jewelers’ centennial year, creating a lasting symbol of the company’s remarkable journey.
A D Flawless diamond represents the highest standard of diamond quality, combining perfect colorlessness with flawless clarity under magnification. Once completed, the finished stone will rank among the rarest natural diamonds in existence.
Honoring Heritage Through the Old Mine Cushion Cut
The finished diamond will be fashioned into an Old Mine Cushion cut, one of the earliest and most romantic diamond shapes in history. Long before modern technology, these diamonds were meticulously shaped by hand, illuminated only by candlelight and guided by the skill of master craftsmen.
Known for its soft silhouette and distinctive faceting, the Old Mine Cushion cut embodies timeless elegance while celebrating the artistry that has defined fine jewelry for centuries.
By choosing this historic cut, London Jewelers honors its rich heritage while looking confidently toward the future.
From Botswana to Brilliance
In partnership with Grandview Klein Diamonds, the rough diamond will be cut and polished in Botswana, the country where it was originally discovered. The project is part of the ORIGIN program by De Beers Group, an innovative initiative that traces a diamond’s journey from rough crystal to finished masterpiece through verified provenance and storytelling.
Every stage of the transformation will be documented, offering a rare behind-the-scenes look at the precision, expertise, and artistry required to bring a diamond of this significance to life.
This commitment to transparency and provenance reflects the growing demand among luxury consumers for responsibly sourced natural diamonds with authentic stories.
A Legacy Built on Family and Craftsmanship
For four generations, London Jewelers has remained dedicated to delivering exceptional diamonds, fine jewelry, luxury timepieces, and personalized service. What began as a modest storefront in Glen Cove, New York, has evolved into one of the nation’s most respected family-owned luxury jewelry retailers.
Today, with boutiques throughout Long Island and New Jersey, London Jewelers continues to serve generations of clients while maintaining the values that have guided the company for a century: trust, expertise, craftsmanship, and meaningful relationships.
The collaboration with Grandview Klein Diamonds carries special significance, reflecting a decades-long relationship between two respected family businesses united by a shared commitment to excellence.
Looking Ahead to the Next 100 Years
The creation of this extraordinary diamond represents more than a celebration of the past—it serves as a statement about the future of luxury jewelry. By combining centuries-old craftsmanship with modern innovation, ethical sourcing, and world-class expertise, London Jewelers continues to set the standard for excellence in the fine jewelry industry.
As the diamond’s transformation unfolds, clients and diamond enthusiasts alike will have the opportunity to witness a once-in-a-lifetime journey—from a rare natural rough crystal discovered in Botswana to a breathtaking 20.26-carat masterpiece created in honor of a century of achievement.
For London Jewelers, the diamond is more than a gemstone. It is a reflection of a 100-year legacy—and a brilliant symbol of the generations still to come.
About London Jewelers
Founded in 1926, London Jewelers is one of America’s premier family-owned luxury jewelry retailers. Renowned for exceptional diamonds, designer jewelry, prestigious Swiss timepieces, and unparalleled client service, the company operates luxury boutiques across Long Island and New Jersey and remains dedicated to delivering extraordinary experiences for generations of discerning clients.
