Oval opal ring surrounded by diamonds

Oval opal ring set in platinum. It is surrounded by a halo of old-cut diamonds. The platinum setting emphasizes the delicate nature of the jewelry.

Material: Platinum
Hallmark: Mascaron
Weight: 4.7grs

Length: 1.5 cm
Width: 1.3 cm
Resiziable ring size: 51
Number of carats: 1.80 ct of diamond and 5 cts of opal
Number of stones: 12 diamonds and 1 Opal
Period: 1930