Need some direction! .9 carat price...

[Trifast]

Hi all,

I've been ring shopping for too long and I keep revisiting the same information over and over but do not feel I have a solid basis of information. Therefore when I found the forum I was pretty excited to say the least.

I am looking for the following or better:
Carat weight:
0.90
Cut: Ideal
Color: E
Clarity: IF

I'd like to spend in the 8,000 range stone and ring.

I've been searching mainly on blue nile because It seems to be the easiest search and far cheaper than the local stores. I'm oddly attracted to the idea of a more perfect stone than huge sized stone.

Here is what I found today that I like:
http://www.bluenile.com/build-your-own-diamond-ring?first_step=diamond&forceStep=DIAMONDS_STEP#diamonds_forceStep=DIAMONDS_STEP|builder=BYOR|pid=LD03602565

Here is the HCA: https://www.pricescope.com/tools/hca

What are your thoughts?

Thank you!

EDIT: I actually have one more question... Does this size diamond in a 6 prong setting look funny? Is 4 better than 6 for smaller carats? If anyone has any pictures that would be great!