That really is beautiful! I love it with your plain band, too! I'd probably wear a plain 2mm band between the e-ring and diamond eternity so that the diamonds aren't hidden under that halo, though.
I am excited to see this post as I am waiting for my own oval halo now! Is there anything more lovely than a sparkly, elegant, hand-flattering oval in a halo? For me there isn't!! And yours is lovely, beautiful stone and very nice lines - looks great on your hand.
I love your eternity as well. Great way to add more bling!
My original engagement ring was a .48ct oval in a 6 prong "tiffany" setting. I still love the look of an oval, especailly with a halo. Love your ring and hope that you love it for many years to come.