The biggest orange diamond in the world sold to 31,5 million dollars

The biggest orange diamond in the world, which was found in South Africa, was sold in Geneva, on November 12th, in 31,5 million dollars. Even Christie's house which presented this rare stone did not expect this record amount. The diamond, which has an exceptional size for a color which is it just as much, had to, according to the house of London of auction, make climb(soar) the bids between 17 and 20 million dollars.

14,82 carats weighty, the stone is of a qualified color of " vivid ", is a particularly intense brightness. " The diamonds of color are a freak of nature ", specifies David Warren, person in charge of the division jewelry of Christie. " Originally, they are first of all white diamonds, then a coloring agent penetrates into the earth, which is going to change their color. The more the color is intense, the more these diamonds are rare ", explains the expert.

According to the laboratory Gemological Institut of America, there is no diamonds in the world of the same quality quality " vivid ", and they have a weight lower than 4 carats.

The sale of the biggest orange diamond to the world by Christie took place on the eve of that of the Sotheby's rival house, who, proposes November 13th, the biggest pink diamond in the world, for a price expected from 60 million dollars.