Tank ring in gold, platinum and old cut diamond 0.55 ct

Tank ring in 18k (750°/°°) gold and platinum set with an old European cut diamond weighing approximately 0.55 ct (H / VS2 estimated) supported by a row of rose cut diamonds on both sides other stone. French work from the 1940s. Eagle's head hallmark for the 18-carat gold and dog's head for the platinum.

Finger size 54, size adjustment possible
Gross weight: 14.28 grams