It is $676 for this XR1154 semi mount without #29344 center, with 2 pieces 1ct(6.5mm) GHI color round moissanite accents in 10K white gold.
20UPSH2Q loyalty coupons ($50)
The price difference for the semi-mount that you need to pay is $676*20%-$446.71-$50=$44.09.