I need your help

Paul and I are going to wedding this weekend in Pennsylvania. It should be a blast and since it is one of Paul's friends, I am excited to see a group of people that we don't get to see all that often. I am wearing this black peplum dress that I picked up from Anthropologie and really love (though just a heads up, I am totally not wearing it with those tights or shoes-- I think that I might go with these that I picked up this fall)

But here is where I need your help....what jewelery do you wear with this dress? I have never rocked a peplum before and don't really know if a necklace works with the neckline. So fashionistas out there..help!