This vintage Art Deco ring features an oval cabochon natural black opal in an open-back claw setting, approximately 9.70 carats. The solitaire design includes stylised claws, a pierced liner gallery, and open oval backholing. Crafted in platinum, it has raised shoulders with ridged detail that flow into a solid flat shank. Ring size is US 7 and it can be resized; total weight is 5.20 grams.