17-Carat ‘Bleu Royal’ fancy vivid blue diamond could fetch US$50 million
The always popular fall Geneva jewelry auctions will be held in November and one of the most anticipated gems will be the 17.61-carat “Bleu Royal,” the largest internally flawless fancy vivid blue gem to ever appear at auction, Christie’s said in a statement. The pear-shaped gem will be the top lot in Christie’s Geneva Magnificent […]