6 Carat Emerald Cut Diamond Eternity Band in 18k White Gold6 Carat Emerald Cut Diamond Eternity Band in 18k White Gold. This stunning eternity band features 21 emerald cut diamonds set in 18 karat white gold. The diamonds are each . 32 carat and range from H to I color, and VS2 to SI1 clarity. They are set with shared prongs, which allows the long outer edges to touch for a continuous line of diamond brilliance. A very special ring that would make a fabulous anniversary gift.