The provisions of this chapter shall not apply to the following:
(1) Transactions involving the sale or transfer of precious metals by a wholesale jeweler to a retail jeweler or licensed dealer;
(2) Transactions involving coins regardless of whether or not such coins contain precious metals;
(3) Any financial institution which is covered by federal or state deposit insurance;
(4) Any person doing business under the laws of this state or the United States relating to any broker-dealer or commodity futures commission merchant or commodity trading advisor or agent duly registered and regulated by the State Securities Department or the United States Commodity Futures Trading Commission; or
(5) Pawn brokers.