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A model displays a 110.03 carats Sun-Drop Diamond described as fancy vivid yellow, the highest color grading by gemstone experts at a Sotheby's preview show in Geneva, Switzerland, Wednesday, Nov 9, 2011. Sotheby's says that the jewel is being sold by Cora International which discovered the diamond in South Africa last year. (AP Photo/Anja Niedringhaus)

Largest yellow diamond fetches $11 million

A rare yellow pear-shaped diamond, the world's biggest, sold for over $10.9 million at auction. (AP)