Antique Russian Siberian Amethyst and Demantoid Earrings made in St. Petersburg between 1899 and 1904 The 14K gold earrings are prong-set with two exceptional Siberian amethysts. […]

A Vintage Amethyst and Diamond Ring circa 1930 A platinum topped 18K gold navette shaped ring set with a marquise cut amethyst in a milgrain gold […]