The November 10 Christie’s Magnificent Jewels auction in New York features pieces by Suzanne Belperron, Harry Winston Van ...
A 5.7-carat fancy intense blue diamond ring could fetch $6 million to $8 million during the Christie's Magnificent Jewels ...
A very rare blue diamond sold for over $40m (£32m) at a Christie's auction in Geneva, news agencies said. The 17.61 carat, pear-shaped Bleu Royal diamond, set in a ring, fetched $43.8 million ...