Russian, made in Kazan between 1899 and 1908

A 14K gold ring is prong-set with a bright white old cushion cut diamond (5.3 x 5 x 3.25 mm, approximately 0.70 ct, G color, SI2 clarity).

The ring is marked with 56 zolotnik gold standard with assayer’s initials of Ivan Ado.

Ring size 9.25 (19 mm), sizable