Liangzhu Culture, circa 3300 – 2250 B.C.
the well finished and smoothly polished wide ring with thick sides, flattened on the inner surface and steeply rounded on the exterior, the olive green stone with cloudy mottling throughout.
Diameter 3 3⁄8 inches (8.5 cm)
A jade bracelet of very similar form and size excavated from the Liangzhu site at Yaoshan, Zhejiang province, is illustrated in Liangzhu yizhi qun kaogu baogao (Reports of the Group Sites at Liangzhu), Vol. I, Yaoshan, Beijing, 2003, p. 301, col. pl. 490, with description on p. 158 and in a line drawing on p. 159, pl. 199, no. 3.
Compare also the Liangzhu jade bracelet of very similar form in the British Museum, showing the same cloudy alteration of the stone, illustrated by Rawson, Chinese Jade from the Neolithic to the Qing, London, 1995, p. 147, fig. 1.
新石器時代 良渚玉鐲 徑 8.5 厘米