Rare Farnese blue diamond sells for $6.7 million

A rare blue diamond, passed between Europe's royal houses for more than 300 years, has been sold at auction for $6.7 million. Known as the Farnese Blue, the pear-shaped 6.16-carat jewel surpassed pre-auction estimates after going under the hammer for the first time at Sotheby's Geneva Tuesday evening. Pročitaj više