I was married for 6 months, now I have the wedding rings and need to sell them. What's the best way?

My marriage was a disaster and so I got it annulled, but now I have both of the wedding rings that are basically brand new and were expensive. I don't have the foggiest idea how to sell them or get some money out of them, I checked ebay and there are billions posted there with no bids so I don't think that's the answer. I'm curious if wholesalers or jewelry stores will give you anything for them, maybe atleast trade in value. Anyways, if someone could help me out I'd appreciate it.