We check you paid US$216.41 in Amazon order and paid $66.5 in #9488. So you have total $282.91.
For this new ring set, it is $355.2(after discount) for this ring set with a1ct(6.5mm) DEF color CA cut round moissanite center, moissanite accents in SS,Size 5.5. (1 wedding band + 1 engagement ring.)
So the price difference for this new replacement ring set is $5.79($355.2-$66.5-$282.91)