A LATE 19TH CENTURY 18CT YELLOW GOLD OPAL AND DIAMOND RING, the oval cut opal claw set within a surround of sixteen old brilliant cut diamonds in a pierced detail mount between tapering shoulders on a plain band. Stamped 18CT. Ring size N. Weight 4.4gms. The opal weighs approximately 1.77 carats. The total weight of the diamonds approximately 0.35 carats.