It was a wide and varied offering of diamonds, colored gems and signed jewels, but the star of the two days was a 3.47-carat fancy intense blue diamond that sold for $6.66 million, smashing its $2 ...

November 21, 2024 This 5.7-Carat Blue Diamond Ring Could Fetch a Cool $8 Million at Auction Christie's upcoming Magnificent Jewels sale includes pieces from Cartier, Van Cleef & Arpels, and more.

The 15.10-carat De Beers Cullinan, meanwhile, sold for a whopping $57.5 million three years ago; also discovered in the Cullinan mine, that stone remains the largest blue diamond to ever come to ...

The average diamond carat weight for an engagement ring in the United States is about one carat. In the United Kingdom, it's 0.6 carats, and when looking at Europe as a whole, it's even smaller ...