I'm looking for a necklace like this one, but I want the whole necklace to be in sterling silver and the "bead" in the middle to be a shinier, finer bead. Any ideas? I don't want to purchase another chain.

http://www.tiffany.com/Shopping/Item.aspx?sku=21428523&mcat=148204&cid=287465&sear ch_params=s+5-p+29-c+287465-r+101323338-x+-n+6-ri+-ni+0-t+