Gorgeous 18K White Gold Sapphire Diamond Eternity Wedding Band. This gorgeous piece features 84 natural blue sapphires, weighing 2 carats and 27 brilliant round diamonds, totaling .56 carats. The top of the ring measures 3/8 of an inch wide at its widest point. The ring is size 6.5 and sizing is available. It weighs 3.3 grams.