![The Bleu Royal, one of the most expensive diamonds ever sold? The rare, historic blue gem could fetch millions at Christie's auction, which also features pieces worn by Audrey Hepburn and Marlon The Bleu Royal, one of the most expensive diamonds ever sold? The rare, historic blue gem could fetch millions at Christie's auction, which also features pieces worn by Audrey Hepburn and Marlon](https://cdn.i-scmp.com/sites/default/files/d8/images/canvas/2023/11/06/297d25af-8457-4813-8fb0-0628653c94f8_3fefb016.jpg)
The Bleu Royal, one of the most expensive diamonds ever sold? The rare, historic blue gem could fetch millions at Christie's auction, which also features pieces worn by Audrey Hepburn and Marlon
![THE ROYAL DIAMOND | REFERENCE BA 15 A WHITE GOLD, DIAMOND AND BROWN DIAMOND-SET BRACELET WATCH, CIRCA 2000 | Watches Online | Watches | Sotheby's THE ROYAL DIAMOND | REFERENCE BA 15 A WHITE GOLD, DIAMOND AND BROWN DIAMOND-SET BRACELET WATCH, CIRCA 2000 | Watches Online | Watches | Sotheby's](https://sothebys-md.brightspotcdn.com/dims4/default/2dc3b71/2147483647/strip/true/crop/1390x2000+0+0/resize/2048x2947!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2F11%2Fb8%2F6c487e7f4a5d9bd67bfadd713a1f%2Fhk0904-bdywt-053-02-1.jpg)
THE ROYAL DIAMOND | REFERENCE BA 15 A WHITE GOLD, DIAMOND AND BROWN DIAMOND-SET BRACELET WATCH, CIRCA 2000 | Watches Online | Watches | Sotheby's
![The Bleu Royal, one of the most expensive diamonds ever sold? The rare, historic blue gem could fetch millions at Christie's auction, which also features pieces worn by Audrey Hepburn and Marlon The Bleu Royal, one of the most expensive diamonds ever sold? The rare, historic blue gem could fetch millions at Christie's auction, which also features pieces worn by Audrey Hepburn and Marlon](https://cdn.i-scmp.com/sites/default/files/d8/images/canvas/2023/11/06/723484fd-4382-4b14-be55-48c097962ec5_e425c12b.jpg)
The Bleu Royal, one of the most expensive diamonds ever sold? The rare, historic blue gem could fetch millions at Christie's auction, which also features pieces worn by Audrey Hepburn and Marlon
![The Bleu Royal, one of the most expensive diamonds ever sold? The rare, historic blue gem could fetch millions at Christie's auction, which also features pieces worn by Audrey Hepburn and Marlon The Bleu Royal, one of the most expensive diamonds ever sold? The rare, historic blue gem could fetch millions at Christie's auction, which also features pieces worn by Audrey Hepburn and Marlon](https://cdn.i-scmp.com/sites/default/files/d8/images/canvas/2023/11/06/b7a79851-6e5a-4d16-b6a3-81e224f02c8a_d890f97e.jpg)