A rare blue diamond on the 10th in London to 16.4 million pounds (about 24.3 million US dollars) astronomical record diamond auction price record. The blue diamond called "Wittelsbach", weighs 35.56 kt. Alexander Kinderman, a Christie auction house spokesman, said blue diamond buyers are billionaires and diamond dealer Lawrence Graf. Kindermann said that the transaction price is almost twice the valuation, setting a diamond auction price record. The previous record was a 100-carat diamond auctioned in Switzerland for $ 16.5 million in 1995. Profile picture: The diamond is reflected in a portrait of Marcella Tower Teresa. Christie's auction house said King Philip IV of Spain bought the blue diamond in 1664 and gave it to her beloved Fatamar Margarita Teresa. Teresa faceless, diamond inherited by her husband, the Austrian king Leopold I, after the spread to their children. The granddaughter of Leopold I was married to Charles of Bavaria in 1722, the latter belonging to the Wittelsbach family and the name of the diamond.