9 Platinum, Black Opal, Sapphire and Diamond Ring Centering one oval black opal approximately 3.85 cts., flanked by 2 fancy-shaped sapphires and 4 baguette and 10 single-cut diamonds, circa 1930, appr
9 Platinum, Black Opal, Sapphire and Diamond Ring Centering one oval black opal approximately 3.85 cts., flanked by 2 fancy-shaped sapphires and 4 baguette and 10 single-cut diamonds, circa 1930, approximately 3.4 dwt. Size 8.