Sotheby's 'perfect' 100 carat diamond could fetch $25 million -20-04-2015
Paddles at the ready! One of the world's largest flawless diamonds is about to hit the auction block.
On April 21, Sotheby's New York will sell a 100-carat, emerald cut internally flawless diamond, the largest of its clarity and cut ever shown at auction. The auction house expects it to fetch up to $25 million.
