I am torn between a cushion brilliant and a H and A round brilliant. I have watched several videos form GOG and while they are great, I still can''t decide. I want the biggest and brightest stone I can afford in the G color/SI-1 range. I like the faceting of the cushions, but am not sure if they will perform as well as I would like (maybe with one of those "rare" ones Jon talks about?) I also wonder which would look bigger on my finger if they are the same carat weight and both well cut. Does it require buying a larger cushion to get the same look size-wise of a round? Unfortunately, I don''t live near GOG to see in person and I was hoping someone that has looked at the cushions could give me some help. Thanks for any advice!