There are basically two kinds of silver coin dealers: online (national) and local and there are some marked differences between the two.
We’ve all seen the commercials where people send their silver jewelry in by mail and receive payment. There are also local silver coin dealers where you can take your silver jewelry into their shop and they will appraise the silver and make you an offer to buy it. Both of these are excellent options for someone who just wants to sell their silver jewelry for some cold, hard cash. You should do some research online before selling your silver to any dealer and make sure there are no complaints against the company.
There are also silver coin dealers who do not buy silver from you rather they buy silver on your behalf ideally at a price that is below the market rate at some point so you can re-sell the silver coins at a higher price yielding yourself and the dealer a nice profit.
While the local and online coin buyers will buy your silver for not more than they expect to sell it for, the silver coin dealers who buy and sell silver for you generally make a set commission on each deal they negotiate for you. Either way you will need to consider bottom line for yourself before entering into any transaction with silver coin dealers.