Three Antique Gem-set Rings

Description:

Three Antique Gem-set Rings, one with banded agate cabochons, another with blue stone cabochon and split pearls, gold mounts, the third with cushion-shape sapphire within braided rose-cut diamond bezel, silver and 14kt gold mount, Russian hallmarks, size 6, 3 3/4, 5.
Estimate $250-350

Two agates are cracked, center cabochon on blue ring appears to be glass, wear commensurate with age.