eBay is your best bet. they're only silver, so if you try to sell it to a pawn shop, or something, you wont get alot. i took some sterling tiffanys to a pawn shop, just to see how much it was "worth". the guy told me that he could give me $25 dollars for a RTT bracelet. haha, yeah right!
Save it for a daughter. I think some of the Tiffany items have a little better resale because they're not so popular. Unfortunately there are so many of these. (I know - I bought them for my daughters - ha ha!). It's a pretty set, but I'm agree I think people are so wary of fakes. If your feedback is really good you might be able to get 40-50% of retail. That's why I would hold on to them.