Antique Art Deco Diamond and Onyx Plaque Ring

A striking Art Deco diamond and onyx ring in platinum. The old cut diamond, estimated to weigh 0.40ct (I/VS2), to a rub over setting within a cushion shape faceted onyx. The onyx is four claw set and there are two diamonds set on each shoulder.

• Period – Art Deco, Circa 1925
• Size – O / 56 / 7.5
• Stones – Diamond and Onyx
• Metal – Platinum
• Gross Weight – 3.5 grams