If you are looking to stack, I'd go with something very thin and delicate....how about something like this
http://pinterest.com/pin/172684966934076579/
or this
http://pinterest.com/pin/172684966934059245/
it's Kate Beckinsale's set and I'm in love. I think pairing what you have with a unique band that is still slim would be great. Then you can still wear the bands with the e-ring, on their own together, or individually. But the others seem too bulky to stack, imo. But then again I'm all about the less is more and delicate look.
ETA--added the pics as attachments so no need to click on links.
http://pinterest.com/pin/172684966934076579/
or this
http://pinterest.com/pin/172684966934059245/
it's Kate Beckinsale's set and I'm in love. I think pairing what you have with a unique band that is still slim would be great. Then you can still wear the bands with the e-ring, on their own together, or individually. But the others seem too bulky to stack, imo. But then again I'm all about the less is more and delicate look.
ETA--added the pics as attachments so no need to click on links.