OC Gold & Silver Exchange 3617 E. Coast Highway, Corona del Mar, CA92625 OC Gold & Silver Exchange is a full-service gold and silver buyer. In addition, the outlet also purchases items made…More from platinum. Customers bring in their unwanted jewelry, broken scraps of precious metal or old fillings, and a representative of the store weighs and authenticates the items and immediately gives the customer cash in return for the gold. Mostly, the store sells the items it is given, but occasionally some pieces can be found for sale at the front of the shop. OC Gold & Silver Exchange also hosts gold parties. Clients open their homes to the company, which provides invitations, food and drink. The client simply needs to invite friends to bring their items. Friends get cash and a great night, while the homeowner gets a 10-percent commission on all transactions.