circa 1950

A vintage French platinum and white 18K gold ring features royal blue and tangerine orange oval sapphires accented by a diamond-set stylized ribbon.

The blue sapphire measures 10 x 7.5 x 4.15 mm, approximately 2.49 ct; the orange sapphire is 10 x 7.37 x 5.45 mm, approximately 3.21 ct.

Estimated total diamond weight is 0.25 ct.

The ring is marked with dog’s head and eagle’s head French assay marks for platinum and 18K gold.

Ring size 7.5 (18 mm) sizable