What Are Certified Gold Coins?

First, a coin is purchased in its “raw” state by a trained numismatist. At this stage the risk of financial loss is greatest. Next, the coin is sent to the Numismatic Guaranty Corporation, an independent non-biased entity, which “certifies” its grade and authenticity for the entire market. Finally, the graded coin is sonically sealed in a hard plastic tamper-proof holder. This eliminates potential bias with...