Emerald Star Cocktail Ring w/ Diamond Accents in 18K.  This exceptional cocktail ring features a round cut emerald set in 18 karat yellow gold with .10 carats of round cut accent diamonds. The .16 carat emerald sits inside a wonderful mounting full of sharp open spaces and milgrain detail resembling a bright yellow star with a green center. This is a fabulous choice for someone looking for a cocktail ring but maybe not an overwhelming cocktail ring.