An antique Russian necklace features a superb, deep royal purple Siberian amethyst of an unusual pear shape. The amethyst is framed by sparkling old European cut diamonds set in silver over 14K gold.
The amethyst measures 16.4 x 18.7 x 9.4 mm and is approximately 13.75 ct.
Estimated total diamond weight is about 3 carats.
The necklace is marked with 56 zolotnik Imperial gold standard and later Soviet control mark from the 1930s for 583 gold standard. It comes in D. Osipov, St. Petersburg retailer’s case of the period.
Length of the pendant 48 mm (1 7/8 in.)
Length of the chain 42 cm (16 1/2 in.)
Siberian amethysts are no longer mined. They are rare and could be found only in antique jewelry from the Tsarist era or the early Soviet era (1930s-1950s).