The value of a George Washington dollar coin (also known as a Presidential dollar coin) depends on its condition, year of minting, and any special mint marks or errors. The most common George Washington dollar coins, which were minted from 2007 to 2016, are worth their face value of one dollar. However, some special edition or rare coins may be worth more to collectors. For example, the 2007 George Washington dollar coin with a "P" mint mark is considered a rare coin and can be worth several dollars. It's always a good idea to consult a reputable coin dealer or expert to determine the exact value of a particular George Washington dollar coin.