I guess it depends, how much are you looking to spend? I do have a 2 carat I VS2 BGD Blue that is currently in a platinum setting but you could probably find a cheaper alternative that isn't a super-ideal cut BGD stone in seeking out a GIA XXX with < 2 HCA score at James Allen...
Also, if you are willing to consider old cuts there have been some fabulous options floating around on pre-loved!
I'm not considering an older cut as this will be the center stone for a three stone ring. I'm hoping for a good preloved price. Budget is being renegotiated. I wanted to see if I could find a solid deal first. How much would you want for your BG Blue?