A 100-carat yellow diamond (L) is displayed at British jeweller Graff's collection in Tokyo November 22, 2006. The diamond worth 3.2 billion yen ($27.5 million) is part of a jewellery collection worth a total of 50 billion yen ($423 million), according to Graff Japan. (Xinhua/Reuters Photo)
A 100-carat yellow diamond is displayed at British jeweller Graff's collection in Tokyo November 22, 2006.(Xinhua/Reuters Photo