There are kinds of carving style on the Shang 
dynasty jade congs: 1.plain surface. 2. convex line god’s face. 3.low relief carving of phoenix head and God’s face. This cong has three sections. The upper and lower sections are deity face with low relief lines that confirm the carving style and the motif of the Shang Dynasty.. The middle part is four trenches. Antiquity evidence includes dissolved pits, additive crystal, and calcification.
Appraisal Indexes:
- quality of jade: 7
- rareness: 9
- historical and cultural significance: 8
- workmanship: 7
- size: 3
- condition: 10