Yellow gold ring adorned with a ruby shouldered by 2 diamonds

Yellow gold ring set with an oval ruby in the center in a closed setting, framed by two diamonds.

Material: 18k yellow gold
Hallmark: Owl
Weight: 11.2g
Length: 1.6 cm
Width: 0.9 cm
Ring size adjustable 45
Carat weight: 2x 0.10; 2.70cts
Number of stones: 3
Period: 1980