When is a square not a square?

[wesokyjb]

At what point do the length and width proportions of a Princess become undesirably rectangular? For example, if the difference between the two is .3mm, is it a poor cut? What about .2mm? Do thye have to be within .1mm?

 

[Richard Sherwood]

A square is no longer considered a square when the length to width ratio varies by more than 5%.

If it does vary though, it doesn't necessarily mean it is a "poor cut". It's just a rectangular princess instead of a square princess.