Maybe you inherited a large coin collection recently, or a coin caught your eye when you got handed change. Either way, if you’re looking to sell a coin, it can be hard to know if you’re getting a good deal when you sell it. Many people think that coin prices are only based on how old the coin is. In fact, there are many more determinants than age alone. Just like diamonds get graded on their “4 C’s”, coins are graded on the following characteristics: