Knob-cut diamonds, black and white enamel on reverse and shank, foil, gold, ring size 5 ¼, 17th century.

Literature: Cf. Tillander 1995, pp. 66-67
Cf. Scarisbrick 2007, p. 315.

Exhibited: Tokyo Metropolitan Teien Art Museum, Tokyo 2003, p. 57
The Miho Museum, Koka 2016, p. 24, no. 1.