Are these Princess of Hearts? Which is the better one?

[fluxos]

I'm comparing between 3 square radiant diamonds right now... and loved the princess of hearts (PoH) radiant cuts.

The question here is which in your opinion is the best? Also, are the 2 diamonds from James Allen below PoH?

Good old Gold PoH
http://www.goodoldgold.com/diamond/10156/
Shape: Radiant
Carat Weight: 0.77ct
Color: H
Clarity: SI1
AGS Cut Grade: Ideal
Optical Symmetry: Princess of Hearts

vs.


http://www.jamesallen.com/loose-diamonds/radiant-cut/0.76-carat-h-color-vvs1-clarity-sku-256155
Carat weight:0.76 Certificate:GIA Color:H Shape: Radiant Clarity: VVS1

http://www.jamesallen.com/loose-diamonds/radiant-cut/0.77-carat-g-color-vs2-clarity-sku-256156
Carat weight:0.77 Certificate:GIA Color:G Shape: Radiant Clarity: VS2