If exchange to below ring set in sterling silver 1ct DEF color octogan moissanite with moissanite accents , size 8.25 .
The price difference that you need to pay is $444-$352.89=$91.11
https://www.doveggs-seattle.com/products/doveggs-round-channel-set-bridal-set-moissanite-engagement-ring?_pos=4&_sid=ea75e0fcc&_ss=r