For the engagement ring semi mount, it is $906 for this XR0873 ring semi mount without #23683(3ct）center, with no bigger than 2.8mm round lab grown diamond accents ( neck ）in 18K yellow gold band and platinum ring head. Size 7.25,So the price is total $1211.6($906+$305.6) .
The price difference is $199($1211.6-$1012.6).
