$447 for this ring semi mount without 3.384ct cushion center in 10K yellow gold band and 10K white gold ring head.--with 17% off, the setting is $371.01 The center stone with 35% off is $1540.5. The engagement ring after discount is $1911.51. So the price difference of #25456 is $1222.454（$1911.51+$86.132-$775.188）