60. A diamond and opal ring

A diamond and opal ring
20th century
Centered by three graduating cabochon-cut opals within old-cut diamond mount.
Below legal Dutch platinum alloy
Total opal weight approx. 6.00 ct
Total diamond weight approx. 0.45 ct
Ring size 53/17
Measured and weighed in the mount

€ 800 - 1.200
Hammer amount