Art Deco Tank ring in gold and diamonds

Art Deco style ring in 18k (750°/°°) gold composed of a swirl motif in white gold set with rose-cut diamonds and set in its center with a diamond weighing approximately 0.25 carats HI/VS quality.
French work from the late 1940s.
Presence of a manufacturer's hallmark (.W. for Wegelin SA) and an eagle's head hallmark.

Good general condition, Tiny scratches from use
Weight: 5.97 grams
Finger size: 58, sizing possible