A very rare blue diamond sold for over $40m (£32m ... Christie's said. Part of a private collection for 50 years, it was the first time the Bleu Royal was sold at an auction.
The November 10 Christie’s Magnificent Jewels auction in New York features pieces by Suzanne Belperron, Harry Winston Van ...
The 5.7-carat fancy intense blue diamond ring leads the auction house’s Magnificent Jewels auction with ... The two were ...