An Antique Russian Sapphire and Diamond Engagement Ring
made in St. Petersburg between 1908 and 1917
A natural midnight blue sapphire in a claw setting with an approximate weight of 2.6 ct, encircled by 11 Old European cut diamonds with an approximate total weight of 2.05 carats (color F-G, average clarity VS2-SI1).
Height 18 mm (11/16 in.)
US ring size 8 (inner diameter 18 mm)
Finely crafted ring with an elaborate openwork gallery.
Marked with 56 zolotniks old Russian gold standard (14K – 583) / St Petersburg assay office, and master’s initials.