Later 16th century AD. A natural diamond crystal set with square table facet uppermost in an Elizabethan era gold finger ring; the diamond a natural crystal, amber in colour with inclusions; the ring with keeled D-section hoop, running scrolls to the outer faces, rectangular bezel with cell and lateral swags. Cf. Chadour, A.B. Rings. The Alice and Louis Koch Collection, volume I, Leeds, 1994, item 633 the Archbishopric Freising ring. 7.37 grams, 28mm overall, 18.82mm internal diameter (approximate size British R, USA 8 3/4, Europe 19.0, Japan 18) (1"). Property of a UK gentleman; acquired from a London gallery in the late 1980s; formerly from a private European collection, formed in the 1960s and 1970s. Accompanied by scholarly note TL 005250 from Dr Ron Bonewitz.