Glad you are keeping that amazing solitaire in the works, but don't feel bad about the multi-stone ring ideas! When I got my OEC I was so stinkin giddy that I was like "you stick that baby to a rubber band and I'd wear it forever!" but then eventually I was like, "you know, this 9mm would look pretty darn amazing flanked by two 6mm's
I say if you have the funds, go for it! I mean, it's not like it won't be verstile enough to fit neatly in your collection as your tastes expand and evolve! Ya can't go wrong with a 3 stone, OR 5 stone for that matter!