Vintage Style Square Cut Emerald Cocktail Ring in 14kVintage Style Square Cut Emerald Cocktail Ring in 14k. This lovely vintage inspired cocktail ring features a . 15 carat square cut emerald with accent diamonds set in 14 karat white gold. The square emerald is offset in relation to the shank and surrounded by a border of milgrain detail and overlapping filigree diamond mountings. A beautiful setting with great color and contrast, and a neat execution over a simple gold shank.