A Sotheby’s employee shows ”the Historic Pink”, a ring with a fancy vivid pink diamond weighing 8.72 carats and with a classic non-modified cushion cut, which is estimated to sell between 14,000,000 to 18,000,000 US dollar, during a preview at the Sotheby’s auction house in Geneva, Switzerland, Wednesday, May 6, 2015. The auction will take place in Geneva on May 12, 2015.



