I think it is an excellent deal. I have been assured that the inclusions are not visable to the naked eye. Culet none, Fluorescence inert, 5.01 x 5.03 x 3.04. Comes with loupe, a tool to view hearts and arrows pattern, and a tool to hold the diamond.
Price also includes shipping.
I think you ve got an excellent deal. As for the clarity, this size SI2 diamond should be eye-clean. Tell us how it looks like when you'll get it. This is the cut adviser rating. It is your call when you get the stone about the SI2.