Cleveland Museum of Art

Ceremonial Disk with Grain Pattern (Bi)

Date

475–221 BCE

Medium

jade (nephrite)

Culture

China, Warring States period (475–221 BCE)

Department

Chinese Art

Institution

Cleveland Museum of Art

Jade disks of later centuries developed from the Neolithic period’s plain design to incorporate dense surface decoration. This example bears raised dots with finely incised spirals--so-called grain patterns--arranged in diagonal rows. The disk's outer rim is incised with a 47-character poem written in seal script, dated to the gengyin year of the Qianlong emperor's reign [1770].

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