An Art Deco 18K white gold portrait-cut amethyst and single-cut diamond plaque ring with chenier and engraving. Circa 1920.
Antique Collection
Amethyst: 15.95 x 15.02 x 6.35mm
Diamonds: 0.55 total carat weight
G-I color, VS1-SI1 clarity
Size: 9.25 - alterable