"Rare Blue Diamond Expected to Fetch $50 Million at Auction"

A rare internally flawless fancy vivid blue diamond, known as "Bleu Royal," is set to be auctioned by Christie's in Geneva on November 7, with an estimated price of up to $50 million. The 17.6-carat diamond is the largest of its kind and has garnered significant interest from collectors worldwide. In a separate online auction, Christie's will also offer a pearl necklace worn by Audrey Hepburn in the movie "Roman Holiday" and a Rolex wristwatch engraved by Marlon Brando, both expected to attract high bids.