Split shank square halo - Verragio INS-7068CU-GLD 0.65ctw Insignia Engagement Ring Mounting
Bachelorette Party scavenger hunt @Rachel Mixson wasn't there something like this at your bachelorette? kinda sounds like fun!
I like the off the shoulder one - it isn't strapless yet still shows off the shoulders nicely, would go well with a ball gown flare.