Russian, circa 1900.

This unique antique ring is likely a conversion from a Russian Imperial presentation brooch from the period of tsar Nicholas II. The ring is centered with a double headed Imperial eagle embellished with nineteen old rose cut diamonds and one old mine cut diamond. The eagle is surrounded by a green guilloche enamel frame set in an Art Nouveau leaf-motif bezel accented by four rose cut diamonds.

The ring is handcrafted in 14K gold.

Diameter of the top is 16 mm (5/8 in.)

Ring size 8.25 (18 mm) sizable