First of Congratulations. Just got engaged 2 months ago and I went to Wedding day in Burnsville. Had a good experience. They have life time warrenty without needing to be seen every 6 months which is nice.
Second I just gave a Solatire and then she can pick out the band the goes well with it that has its own side diamonds. Second of all the ring would be 100% returnable towards the purchase of what ever ring she wants to buy if she did not like it. That way you get the suprise and she can choose her own ring out if she wants.
Good luck
Geoffrey