Christie’s will offer the Ocean Dream, the largest existing blue-green diamond, at its upcoming Geneva jewelry sale, expecting it will fetch up to CHF 10 million ($12.8 million).
Set in a ring, the triangular-cut, 5.50-carat, fancy-vivid-blue-green, SI1-clarity, type IIa stone comes with an additional mount containing sculpted rock crystal, round diamonds and pink diamonds, Christie’s said Friday. The polished stone, the largest vivid-blue-green diamond the Gemological Institute of America (GIA) has ever certified, originated from an 11.70-carat rough found in Central Africa.
The May 13 Magnificent Jewels sale is only the second time the Ocean Dream has appeared at auction. Christie’s sold it in Geneva in May 2014, achieving CHF 7.8 million (approximately $8.7 million at the time), and the stone has spent the past 12 years in the same collection. In 2003, the Smithsonian Institution’s Museum of Natural History displayed it in its “Splendor of Diamonds” exhibition.
“The Ocean Dream is a gemstone of rare distinction, returning to auction for only the second time in its history,” said Max Fawcett, global head of jewelry for Christie’s. “Celebrated by the Smithsonian Institution as one of the seven Splendors of Diamonds, it stands as the largest fancy-vivid-blue-green diamond ever discovered. An exceptional jewel of profound rarity and allure, the Ocean Dream is a highlight not to be missed.”
Christie’s will preview the Ocean Dream in Bangkok, Hong Kong and Geneva.
Image: The Ocean Dream. (Christie’s)