Be true blue in sapphire-blue...and white. This elegant engagement ring features a 1.55 carat oval created blue sapphire center and brilliant white round cubic zirconia stones that form an ethereal halo. 2.18 carats T.W. The band details are simply enchanting. Platinum-plated sterling silver. Sizes 5-10. (All carat weights are approximate and may vary slightly from those listed.)