Lot 95. An oval opal and diamond ring, by Andrew Grima. Estimate GBP 3,000 - GBP 5,000 (USD 3,984 - USD 6,640). © Christie's Images Ltd 2017

The central closed back oval opal within a bark textured surround with circular-cut diamond tendril accents, to a matching bark textured hoop, 1988, finger size N. Signed Grima

Literature: Cf. Johann Willsberger, Grima, Wenschow Franzis, Munich, 1991 for the same ring, also exhibition catalogue, Grima: Retrospective, Goldsmiths' Hall, 1991, page 74.