The 17.6-carat stone is among the rarest diamonds ever to be unearthed, auctioneer Christie’s said.
Bleu Royal' diamond fetches almost $44 million at Christie's
Christie's Much-Vaunted 'Bleu Royal' Diamond Fetches $43.8 Million
Rare blue diamond sells for $44 million at Christie's auction
Royal Bracelet each sold separate
Bleu Royal Fetches $44 Million at Christie's - JCK
Blue diamond sells for nearly $44 mln at auction
These are the most expensive diamonds in the world
Bleu Royal' diamond fetches almost $44 million at Christie's
Blue diamond sells for more than €40m at Christie's auction in Geneva
These are the most expensive diamonds in the world
The R&M “Lettre” - Page 7 of 261 - Rubel & Ménasché
Colored Diamonds Get Some Love at Sotheby's Geneva Auction - Rapaport