made in Saint Petersburg between 1908 and 1917.
The 14K gold necklace features a 21.89 ct rectangular mixed cut aquamarine of an excellent saturated greenish blue color, accented by two sparkling drop shaped smaller aquamarines.
Total length of the aquamarine pendant is 50 mm (2 in.)
Length of the gold chain is 49 cm (19 in.)
Marked with 56 zolotnik old Russian gold standard with St. Petersburg assay mark and a later control mark for 583 gold from the 1930s.