Humanoid-deity, Shijiahe Culture (2,500-2000 BC). Jade. Length 3.4 cm, Width 1.0 cm, Height 10.3 cm. © Shanghai Museum 

The condition of this mystical figure housed in the Shanghai Museum is completely intact. The jade texture is crystal clear and the craftsmanship superb. It is the only extant piece found in the world so far. Wearing a flat-topped hat and two earrings, with hands crossed at the chest, this image is generally believed to be a wizard conducting a religious rite and communicating with spirits.