This 5.7-Carat Blue Diamond Ring Could Fetch $8 Million at Christie’s

A striking colored-diamond ring is the star of Christie’s upcoming jewelry sale.

The 5.7-carat fancy intense blue diamond ring leads the auction house’s Magnificent Jewels auction with an estimate of $6 million to $8 million. Taking place live in New York on December 10, the sale includes several colored stones, along with white diamonds and private collections that span labels from Cartier to Van Cleef & Arpels.