Help me find a RB in my budget!

[JSmith547]

Looking for any help finding a Blue Nile RB at $5k mark, Won't budge on the Ideal/Signature Ideal cut or I or higher color, but other characteristics are flexible.

 

[mastercut]

What about these?
http://www.bluenile.com/round-diamond-1-carat-or-less-ideal-cut-f-color-si1-clarity_LD02320960
http://www.bluenile.com/round-diamond-1-carat-or-less-signature-ideal-cut-e-color-si1-clarity_LD02310987

or these smaller, but cheaper stones
http://www.bluenile.com/round-diamond-1-carat-or-less-signature-ideal-cut-e-color-si1-clarity_LD01291377
http://www.bluenile.com/round-diamond-1-carat-or-less-signature-ideal-cut-g-color-si1-clarity_LD02325432

or this huge spread stone
http://www.bluenile.com/round-diamond-1-carat-or-less-ideal-cut-i-color-vs1-clarity_LD02317418

If going as high in the budget as I can I would choose the first stone (I prefer higher colour). But the last stone is overall great too.

 

[jewels2]

Why only Bluenile? just curious

 

[JSmith547]

My significant other really likes a setting on BN, but i'm sure i can find a similar setting elsewhere.

Thoughts on the below diamonds?

http://www.jamesallen.com/diamonds/I-VVS2-Ideal-Cut-Round-Diamond-1436440.asp

http://www.bluenile.com/build-your-own-diamond-ring?forceStep=DIAMONDS_STEP&builder=BYOR&pid=LD02224219

 

[mastercut]

Both are nice.
However the first one is unnecessarily high in clarity. And both IMHO are low in colour.