14k White Gold Natural Diamond Eternity Stackable Band Ring 2.20 ctw size 6. The additional 1 ct band in some of the photos is to show the difference in size from a 1 ct size 6 eternity band. One (1) ladies diamond eternity band. The mounting is a single-casted style setting. The band features eighteen (18) round brilliant diamonds, which are common prong set. These diamonds range in size from 3.50 to 3.42mm, are of G-H color, I1-I2 clarity. Total carat weight is approximately 2.20 carats. The band measures 3.50mm at the widest section and does not taper. The diamonds have been tested and are of natural origin.