Ring dimensions: 8.53 x 21 x 4.71 mm (0.336 x 0.826 x 0.185 inches)
Total approximate diamond weight: 0.45 carats
Ring weight: 10.40 g
Finger size: 54 (US size: 7)
18 carats yellow gold, 750/1000th and platinum (owl hallmark)
France, circa 1940/50
Perfect condition.