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
What's the value of 1907 mini st. Garden gol bullion coin worth
The 1928 Saint-Gaudens Double Eagles are the highest mintage of all US gold coins and Mint State examples are common. Current market values are $1,700.00 in MS-60 to $2,330.00 in MS-65.
Be more specific.
Saint-Gaudens were first struck in 1907.
There is 0.9675 Troy ounces of pure gold in a $20 St. Gaudens.
These are beautiful coins - a 1924 Saint-Gaudens $20 Double Eagle coin is worth in extra fine condition (EF40): $1225.
According to the site CoinFacts.com, the nominal weight of an uncirculated St. Gaudens $20 coin is 33.4 grams.
The simple answer is: The only real one that's legal to own sold for $7,590,020.00 in July in 2002
Retail values are $1,650.00 to $2,010.00 in MS-60 to MS-63. The 1928 Saint-Gaudens $20.00 piece is the highest mintage (8,816,000) of any US gold coin struck for circulation
Any St Gaudens $20 Gold piece is worth at least the spot price for an ounce of gold. it weighs roughly 33 grams and is 90% gold 10% copper
A 1923 $20 Gold Coin - aka - Saint-Gaudens Double Eagle - in a mint state of MS63 is worth: $1500.
$1,400.00-$1,650.00 retail for circulated coins. Mint state coins are $1,750.00+
All $20.00 gold coins have .96750oz of pure gold in them.
$1500-$2500 depending on condition. Can be worth more if it's in superior quality.
Saint Gaudens, High Relief, Roman Numerals, no motto 1907 is worth upwards of $30,000