There are kinds of carving style on the Shang dynasty jade congs:
- plain surface. 2. convex line god’s face. 3.low relief carving of phoenix head and god’s face.The cong has three sections. The upper and lower sections are deity face with low relief lines which conform the carving style and the motif of the Shang Dynasty.. The middle part is four trenches. Antiquity evidences include dissolved pits, additive crystal and calcification.
- quality of jade: 7
- rareness: 9
- historical and cultural significance: 8
- workmanship: 7
- size: 3
- condition: 10