In an iconic auction held in Geneva on Wednesday, Christie’s achieved a historic milestone for the global fine jewelry market when one of the world’s most extraordinary gemstones — the 5.5-carat triangular-cut ‘Ocean Dream’ — sold for 13.5 million Swiss francs, equal to $17.3 million. This final price sets a new record for any fancy vivid blue-green diamond ever sold at public auction, far exceeding industry expectations.
Discovered in Central Africa during the 1990s, the Ocean Dream was the headline lot of Christie’s Geneva luxury jewelry sale, carrying a pre-auction estimated value of just 7 to 10 million Swiss francs, or roughly $9 to $13 million. According to Rahul Kadakia, president of Christie’s Asia Pacific, bidding for the rare stone extended over 20 minutes before a final deal was struck, with the winning bid coming from an anonymous private buyer. The extended bidding process signals unusually strong market demand for one-of-a-kind colored gemstones.
This sale price is more than double the $8.5 million the Ocean Dream fetched when it was last sold at Christie’s in 2014. The gem has also earned international acclaim for its rarity: it was featured as a standout exhibit in the 2003 Smithsonian Splendour of Diamonds Exhibition, where it was highlighted among the world’s most exceptional colored diamonds.
Industry leaders have praised the outcome as a fitting reflection of the stone’s unmatched status. “A stellar result worthy of the world’s rarest blue-green diamond,” noted Tobias Kormind, managing director of online luxury jeweler 77 Diamonds, in an official comment on the sale.
The Ocean Dream’s record-breaking sale came just one day after a contrasting outcome at a competing Sotheby’s auction in the same city. On Tuesday, Sotheby’s failed to find a buyer for a 6-carat fancy vivid blue diamond sourced from South Africa’s legendary Cullinan Mine. That stone carried a pre-auction estimate of 7.2 million to 9.6 million Swiss francs ($9.2 million to $12.3 million). Despite the lack of an on-auction sale, Sotheby’s officials confirmed they are currently in ongoing negotiations with multiple interested parties and remain confident the diamond will be sold shortly.
Both major auction houses agree that the high interest in the Ocean Dream aligns with a broader market trend: collector demand for rare colored diamonds has grown steadily in recent years. This category of gemstones makes up only a tiny fraction of all diamonds mined globally, making naturally colored examples like the Ocean Dream extremely valuable investments for high-net-worth collectors around the world.