OMG your ring is gorgeous! I have to admit, I have loved halos but was worried that it would look too big, especially a double halo. But the design of your ring is so exquisite that the halos totally blend into the center stone, making it look like one large diamond. And I think the round halo looks great as your center stone is also a round.
Talk about sparks, fire and dispersion! I love your center stone - it outshines the diamonds surrounding it - and thats saying a lot as they are lovely!