Engagement ring: $915 for this ring with a 2ct(8mm) GHI color Astro heart moissanite center, GHI color no bigger than 2.8mm round moisanite accents ,0.3ct(4mm)GHI heart moissanite accents in 18K rose gold band and 10K white gold ring head and prongs. Size 6.25

Wedding band :$482 for this wedding band with total 2 pieces no bigger than 2.8mm round moissanite stones in 18K rose gold band and 10Kwhite gold prongs. Size 6.25

You paid $1117.2 in #25633+25754, with 17% off, the price difference is $42.31($915*0.8+$482*0.8-$1117.2).