A 3.09-carat rectangular-cut fancy intense blue diamond sold for more than $5.3 million, setting a world record price per carat for an intense blue diamond. The gem, which was set on a platinum ...

Fancy colored diamonds make up the top five lots for Sotheby’s New York Magnificent Jewels auction to ... 5.03-carat cut-cornered rectangular mixed-cut fancy vivid pink diamond, accented ...