There are so many criteria what a genuine jade artifact should be. The most practical criterion is the acceptance by auction house. Therefore the standard samples may not from the public museums, but from items sold by auction houses. For example:
Lot 28
AN EXCEPTIONALLY RARE BROWN JADE CEREMONIAL DAGGER, GE
Warring States Period
Sold for HK$ 1,960,000 (US$ 252,693) inc. premium
The following jade plaque has similar carving style and appearance of antiquity but different form:
