made in Odessa between 1908 and 1917 The 14K gold ring is prong-set with a modified pear-shaped 2.55 ct emerald of a superb rich bluish-green color and an old cushion cut diamond (5.3 x 4.9 x 3.3 mm, approximately 0.72 ct, K color, SI1 clarity). The ring is marked with 56 zolotnik old Russian gold standard (14 K) and maker's initials.