It is $1388USD  for this XR1363 ring semi mount without ＃39013 （2.200ct pear)center,with 2×3mm baguette lab diamond side stones in platinum.

https://www.doveggs-seattle.com/products/doveggs-bezel-channel-set-engagement-ring-engagement-only-ring-semi-mount-onlyexclusively-to-doveggs-stones?_pos=2&_sid=d8718ab12&_ss=r