PRS Gold Buyers purchases used gold, platinum or silver. Customers interested in this service mail in their goods, then wait for an offer that they can either accept or reject. PRS also has a walk-in facility on Route 22 about a quarter of a mile from Interstate 684 in the same building that houses Century 21 real estate. Services there include quick estimates, easy methods of material delivery and prompt payments. Visit the PRS website for further details and information on how to obtain a kit.