Choosing the Right Diamond for a Bezel Pendant

[damian41]

I am looking to have a solitaire diamond bezel pendant made for my wife and would like to spend no more than $6k (including the setting). I am trying to decide between these 3 stones. I'm a little concerned about this blue flouresence in the first stone, will that show poorly in the bezel pendant? Which would you use to make a pendant? I'm really at a loss here and would really appreciate any comments or any other suggestions you guys might have! Thank you!

http://www.briangavindiamonds.com/diamond/diamond-detail/?product_id=BLAGS-104047808009

http://www.briangavindiamonds.com/diamond/diamond-detail/?product_id=AGS-104049084003

http://www.briangavindiamonds.com/diamond/diamond-detail/?product_id=AGS-104044686035