Not enough information. You have its condition identified but not its date or mint mark. Please post a new question with those important facts.
reasonably good condition, $1,300.00, upwards to $65,000
what is the value of a 1924 St. Gaudens Double Eagle gold coin
The 1907 St Gaudens UHR double eagle is actually a trial or pattern piece never intended for circulation. Sales of the 20 or so pieces have been infrequent but those in the last decade have been in excess of $1 million.There's much more information at the Related Link.
Unfortunately, the US mint did not product any St Gaudens gold coins in 1906. Production first began in 1907. View the link below to see a list of every year the St Gaudens Gold "Double Eagle" was produced and how much each of those coins are worth based on their condition.
1907 was the first year of issue.
The current value for a 1924 St Gaudens MS64 that is properly graded (NGC certified) would be $1250 wholesale and would retail for $1550. This presumes a problem free coin i.e., no heavy copper spotting or other detracting issues.
Louis St. Gaudens was born in 1854.
Louis St. Gaudens died in 1913.
Recent sales have been in the $45-50,000 range. If you suspect you have such a coin, you will need to have it professionally authenticated.
It depends on the copy. A copy coin could have either no gold content or it could be pure gold, it is impossible to say because there is no regulation on copy coins.
OK, the first thing is the name, it's SAINT-GAUDENS not st gardens. Second thing is no 1925 gold eagles were made. A eagle is a $10.00 coin and a double eagle is a $20.00 coin and they were made in 1925. The average retail value for a MS-65 example is $2,330.00
The first St. Gaudens double eagles were released in 1907, so a 1904 St. Gaudens coin is not possible. Please check your coin again. If you have a 1904 double eagle with a Liberty head design, it's worth between $1000 and $1100 depending on how worn it is. If you have a different date with the St. Gaudens Standing Liberty design, please post a new question with that information. Copy each of these links into your browser to see images of each design: http://coinfacts.com/double_eagles/liberty_with_motto_double_eagles/1904_liberty_head_double_eagle.htm http://coinfacts.com/double_eagles/saint_gaudens_double_eagles/1910_saint_gaudens_double_eagle.htm