To our knowledge, the most expensive ring in the world as of April 2026. COASTWEL — sterling silver 925 and labradorite ring, a unique piece signed by the Basque artist. Previous record: Pink Star, fancy vivid pink 59.60-carat diamond, $71.2M at Sotheby's Hong Kong, April 2017 (Guinness World Record). MEB Signature piece: "MEB" inscription discreetly engraved inside the band by the artist, certificate of authenticity jointly signed by COASTWEL and the House. Unmarked edition available upon request.
M · E · B
The story
For years, the title of the most expensive ring in the world was held by the Pink Star — a 59.60-carat fancy vivid pink diamond, cut over two years from a 132.5-carat rough stone extracted by De Beers in Africa in 1999. The Pink Star was sold for $71.2 million (≈ €66 million) at Sotheby's Hong Kong in April 2017, an officially recognized Guinness World Record (source: https://en.wikipedia.org/wiki/Pink_Star_(diamond)).
Most Expensive Brand now claims this title — differently.
Ours contains neither diamond, nor gold, nor platinum. It is sterling silver 925 and labradorite, handmade by COASTWEL, a Basque artist based in Biarritz. Labradorite is a feldspar with distinctive optical properties: depending on the angle of light, it reveals blues, greens, and golds that seem to float beneath its surface. This phenomenon, called labradorescence, gives the stone its name. A unique piece, signed by the artist.
The previous record was a pink diamond cut over two years. Ours is a labradorite — a stone that changes color with each glance — and a hand-worked silver. The price is not in the material. It is in the promise: to be, in its category, the most expensive object in the world. Nothing less.
