What is value of an 1862 US 2.50 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 11/2011:

No mint mark (Philadelphia):

Very worn condition - $252

Moderately worn - $282

Slightly worn - $318

Almost no wear - $1,434

Uncirculated - $4,810 to $19,180 depending on quality

No mint mark, "1" underneath the "2" in the date

Moderately worn - $660

Slightly worn - $1,080

Almost no wear - $4,068

Uncirculated - $7,940 to $58,500

"S" mint mark (San Francisco):

Moderately worn - $960

Slightly worn - $1,170

Almost no wear - $5,376

Uncirculated - $21,880 to $25,030

DISCLAIMER: The retail values quoted are the best available as of the date shown, but may vary significantly due to changes in the precious metals market. Also the wholesale (buying) price of a coin will be less than the selling (retail) price. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.