The $20 St. Gaudens gold coins and Liberty gold coins are the largest coins produced by the U.S. Mint and weigh about 1.18 ounces, with the gold comprising 0.97 ounces. The Mint produced Liberty gold coins from 1850 to 1907 and minted St. Gaudens gold coins from 1907 to 1933.
The intrinsic value of the coins varies based upon the commodity price of gold bullion. In addition to their intrinsic value, the historical and collectible interest in $20 gold coins provides additional value based upon the rarity and condition of the coin. Both the coin's intrinsic and collector values increase over time.