Ocean Dream Diamond Sells for $17.3 Million at Christie's
The Ocean Dream, a unique 5.5-carat blue-green diamond, sold at Christie's Geneva auction for $17.3 million in May 2026, nearly doubling its 2014 sale price of $8.5 million. Its rare color is due to natural radiation exposure during formation. The diamond was also displayed at the Smithsonian National Museum of Natural History in 2003.
TOI World··Geneva



