On May 11 local time, a 228.31 carat heavy white diamond was auctioned in Geneva, Switzerland, becoming the largest white diamond ever auctioned. The White Diamond finally fell to the hammer for us $21.9 million. This pear shaped white diamond, called “rock”, is about the size of a golf ball. It is not only large, but also symmetrical and perfect. It is pear shaped. “Rock” is produced in South Africa and is inlaid on a necklace worn by its former owner before taking photos. (head office repor...