this is a great learning question.
I am not an expert but I would guess . . . I don't think so but perhaps it is ok bz of the budget you are going for.
Question: is it cut a touch to deep
and w/ a pavilion angle of 40.8 would you want the crown angle to be more like 34.5?
Thank you for the responses. I have learned so much from this site and the people on it. Thank you Neil for you response. The price keeps going down on this stone every week, I am not sure why but it has been reduced twice. I still want to shop around a bit but have been keeping an eye on it and it might be cheap enough that I am tempted to end my search and buy!