Congrats on your new stone!!!
IMHO, because you're stone is ginormous, I'd recommend one of the following:
1. Keep the simple setting so your stone is the center of attention and you can easily stack it with your eternity band.
2. Have it set to the Leon Mege micro pave. But, I'd only wear the ring because it might be a bit too much and over the top worn with the eternity band. Worn together kind of takes away from the beauty of your stone and the micro pave setting.
3. Consult with Leon on what other setting he can recommend that can be worn together with your eternity band.