How to Identify Gold, Silver and Platinum Metals Like a
Identify gold items by using this list: 8K or 333 9K or 375 10K or 417 14K or 585 18K or 750 20K or 833 22K or 875. The letter P behind a karat stamp means it''s plumb gold, a designation once used to mean that 14K gold was actually parts gold, not parts. It doesn''t mean it''s plated. The marking isn''t usually used today.