Sotheby’s is set to auction off this 59.60 Carat Fancy Vivid Pink wonder. The diamond world expects it to set a record for the most valuable diamond every sold at auction. With estimates at roughly $60 Million U.S. Dollars, it sounds like it will do the trick. Initially we were surprised, but after doing some research, we could not turn up a pricier stone sold on the open market. There are plenty of large diamonds in sovereign collections that are more highly valued, but they are not available to the highest bidder – regardless of what he or she is willing to pay. So if you’ve got an extra $60M lying around, why not take a chance on owning this beauty. It’s guaranteed to make somebody’s day. Our money is on a phone buyer from a developing economy.