https://www.doveggs-seattle.com/products/doveggs-2-030ct-round-e-color-vvs2-clarity-excellent-cut-lab-diamond-stonecertified?_pos=1&_sid=b3896b7fb&_ss=r
if lab diamond change to this 2.03ct round one the price difference that you need to pay is $803.2-($830.13*20%)=$129.09.
