.紅山文化領緣玉璧，D. 23cm，1400g。本器青玉雕琢, 內領緣呈圓滑弧形，內領緣呈垂直平面。全器增生晶面，次生結晶體，溶蝕孔，差異風化等古玉跡像明顯, 本器對研究商周領璧之濫觴及研究紅山文化禮器形制實物具重大意義。
Bi is one of the ritual jade in ancient China. This Hongshan Culture collar bi is similar to the Shang Dynasty collar bi (D. 18.6cm, hole edge H.1.4cm, T. 0.4cm) unearthed in 1976 from Fuhow gravey
ard, A collection of Institute 
of Archaeology, Chinese Academy of Social Sciences, In general, bi is the ritual jade used to dedicated the heaven. The surface of this collar bi is plain, while the surface of the Shang Dynasty collar bi has circles of increasing size from the center hole towards the outer edge. The evidence of antiquity includes dissolved pits and additive crysta[.
The collar bi of Hongshan Culture may be a simplified image of an ancient flying saucer.
Appraisal Indexes:
- quality of jade: 8
- rareness: 8
- historical and cultural significance: 9
- workmanship: 9
- size:10
- condition: 10
