The photo taken on March 9, 2010 shows a ceremonial court pearl necklace made during Qing dynasty (1644-1911), with an estimated value between 8 to 12 million HK dollars, in Hong Kong, south China. Sotheby's is going to hold the Chinese Ceramics and Works of Art 2010 Spring Sale at the Hong Kong Convention and Exhibition Center on April 8, 2010. Comprising over 330 lots, the estimated total value is about 430 million HK dollars. [Song Zhenping/Xinhua]