Although with short period in the history, the Chin Dynasty reveals the highest achievement in the jades carving techniques. The jades in this period have presented unique kind of double reverse L and square cloud motifs that are the key to identifying jades for this period. The mouth of mythical animal is open with teeth shown but not open work carving. The most important and mysterious jades of Chin are the Seal of the Inherited Empire and the Seal of the Empress. Most archaeologists expect to find the majority of the Chin jades assuming that they had been kept in the tomb of Emperor Qin Shihuang. The truth can only be found by the time of the excavation of the tomb of Emperor Qin Shihuang.