World's Most Expensive Diamonds

The Allnatt Diamond - 101-sized diamond. 29 carat (20. 258 g) with a cushion cut, rated in color as Fancy Vivid Yellow by the Gemological Institute of America. This diamond is named after one of the holders, Major Alfred Ernest Allnatt, a soldier, sportsman, art patron and helper. Although it is not known exactly where it originated Allnatt, many experts believe that it may be found in what is now known as the De Beers Premier Diamond Mine.

Allnatt origins are not known prior to purchase Major Allnatt of diamonds in the early 1950 s.Setelah buy a diamond, he commissioned Cartier to make final arrangements for itu.n setting is platinum flower with five petals, two stems and leaves, all arranged with diamond.

The Allnatt is resold at auction in May 1996 by Christie's in Geneva for $ 3, 043, 496 U.S.. At the time of its sale in Allnatt is 102. 07 carat (20. 41 g). Fancy Intense Yellow and assessed. After the sale to Siba Corporation, a diamond was re-cut into heavy current and the intensity increased as a result.