White gold and opal ring

18K white gold ring decorated with an opal on the top.
The Art Nouveau-shaped frame is shaped like a “whirlwind”.
Hallmark 750.

Foreign work of the 20th century.

Weight: 8.62 grams

Finger size: 53 (possibility of resizing at an additional cost)

Upper part length: 13.4 millimeters
Upper part width: 14.55 millimeters
Height of the upper part: 5.35 millimeters
Width of the ring at its thinnest: 2 millimeters