hey there, that ring is awesome! I personally think it would look great set on a thin band with baguettes. I think that would really show the radiance of the diamond...
I was going to ask the same question (proposal, birthday present, or both!) because I noticed the ring on both your right hand and left hand in the pics. So this is a birthday gift... can you imagine what your e-ring is going to look like?!?
Awesome present... you are one lucky gal. Can't wait to see pics of your stone in the new setting!