First: i am not an expert, i know very little, especially about an emerald cut but i just like what I like. I believe Karl is the emerald expert!
Maybe I am crazy but it didnt look 'sharp' to me, @Kim N do you see haziness or am I nuts?? By the numbers it looks ok, for 'ideal' emerald cut, but I feel like people always say you have to evaluate the step cuts with your eye. https://loupe360.com/diamond/LG553223463/video/500/500