blue diamond

(Newser) - The largest fancy vivid blue diamond to ever come to auction sold Tuesday for more than $44 million, far outstripping the pre-sale estimate, Christie's said. The "Bleu Royal"—a ring featuring a fancy vivid blue pear-shaped diamond of 17.61 carats—was one of the standout pieces...

(Newser) - An extremely rare, flawless blue diamond ring is going on auction today in Hong Kong and is expected to fetch a shimmering $5.8 million . The 5.16-carat gem is one of 12 diamonds originally from the DeBeers Millennium collection, displayed in London to celebrate the new century. The pear-shaped...

(Newser) - As the diamond market tumbles, at least it seems a blue one is forever, reports GlobalPost. A 7.03-carat rock unearthed in South Africa last year sold for more than $8.4 million at a Geneva auction today—setting a world record in price per karat for a gem of...