Scott B. writes:Â How much does having a coin certified by PCGS or NGC increase its value, if any. Always wondered?
It doesn’t increase its value but it does standardize its price. This can be both good and bad. If your coin has flaws that collectors don’t like, the slab will tend to give the price of your coin a floor. If the coin is particularly attractive it will have a hard time bringing any more money than a typical coin in the same grade. The more attractive pieces tend to be sent in to be regraded. This has become the “Peter Principle” of coins, that is, all coins eventually reach their maximum believable grade.
