![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/2023/11/06/8fb1c6cd-cee0-4b84-a3c0-557f5113b6d9_4ef418b3.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
![Roger Federer Teams up with Robert DeNiro in a New Switzerland Tourism Campaign | Condé Nast Traveler Roger Federer Teams up with Robert DeNiro in a New Switzerland Tourism Campaign | Condé Nast Traveler](https://media.cntraveler.com/photos/608827ca846d048d598ce8db/4:3/w_1440,h_1080,c_limit/Roger%20Federer%20Q&A_RF_3.jpeg)
Roger Federer Teams up with Robert DeNiro in a New Switzerland Tourism Campaign | Condé Nast Traveler
![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)