The crown angle is too high for the pavilion angle. 35 would be the recommended max for the crown angle with 35.5 being possible. This is a stone that needs an ASET image to determine how much leakage there is.
Other than that, be sure to check online pricing comps to be sure the price isn't out of line. James Allen is a good place to compare prices.
Can you by any chance take a photo with your aset viewer? I would like to see an aset on a 36/40.6 stone. When I look on JA I can mostly tell
from the looks of the stone whether it is close to the numbers we look for but this combo catches me all the time so I would like to see how
much leakage there is in this combo.