Flawless South African Blue Diamond sells for R81 Million

So if you are thinking about popping the big question anytime soon and your surname is Gates, Onassis, Rupert, or Getty you might want to consider this little sucker. Mined in South Africa at the Cullinan Mine. The 7.03-carat stone is already set in a ring so nothing to design. It was the centrepiece of Sotheby's semi-annual jewellery sale in Geneva, Switzerland.