If you go to a reputable jeweler or one that specializes in this specific niche, you are likely to find yourself with gold buyers that will give you a good deal. However, you must verify the reputation of their previous business deals to confirm.
This method to sell gold is widely known but usually has a very low asking price for the precious metals you are offering. The Better Business Bureau (BBB) has dubbed most of these firms unethical.
eBay might not be the conventional way to sell your precious silver and gold, but you may get a good asking price for your belongings. The tricky part is that the process will take longer than going to a typical pawn or jewelry shop, and you may have to do much more research before committing to an online vendor.