What is the value of a 1900 US 5 dollar gold piece?

Answer 1

Look on the back of the coin to see if there's a small mint mark letter. It may be blank, or there may be an S.

Numismedia lists the following approximate retail values as of 03/2010:

Circulated condition, regardless of mint mark:

Very worn condition - $312

Moderately worn - $336

Slightly worn - $354

Almost no wear - $391

No mint mark (Philadelphia):

Uncirculated - $444 to $21,940 depending on quality

"S" mint mark (San Francisco):

Uncirculated - $444 to $33,080