Antique 1.85 Ct Old Mine Cut Diamond Men’s Ring. Made in Moscow between 1908 and 1917An antique Russian 14K gold ring is centered with a sparkling 1.85 ct old mine-cut diamond (probably hand carved sometime in the mid-late 1700s) (I color, SI1 clarity). The diamond is set in a silver bezel. The sides of the ring are carved with Art Nouveau designs. The ring is marked with 56 zolotnik Imperial gold standard, Moscow assay mark, and maker’s initials’BC’. Ring size 10 (sizable).