| Oppenheimer Blue | |
| Carats: | 14.62 |
| Color: | Fancy Vivid Blue |
| Cut: | Emerald Cut (Rectangular Step Cut) |
| Owner: | Unknown (was Philip Oppenheimer) |
| Value: | $50.6 million |
The Oppenheimer Blue is a 14.62carat vivid blue diamond that in May 2016 became the most expensive jewel ever sold at auction, until April 2017 when it was surpassed by the Pink Star diamond.[1] [2] [3]
The diamond was named for its previous owner Philip Oppenheimer.[4] It is cut into a rectangle (emerald cut).[5] The Oppenheimer Blue is the largest fancy vivid blue diamond classified by the Gemological Institute of America ever sold at auction; it sold at Christie's in Geneva in May 2016 for US$50.6 million (GBP 34.7m; 56.83m SFr). Two telephone bidders had competed for the diamond; the identity of the purchaser is not publicly known.[6]