It looks to be very white and lively. What a great find! Now, you already have a beautiful solitaire, so is this one going to be an alternative ring, or will you think about doing something else with the stone?
I have a bit of a hankering for a square or rectangular halo pendant at the moment, so I might be biased, but I think that would be a nice centre for a necklace like this one

.
http://rockdiamond.c...oset-diamond-pendantIgnore me if you plan to keep it as a ring, because it does look fantastic with your wrap!