What is the value of an 1852 one dollar gold coin?

Look on the back for a mint mark letter under the bow. Retail values as of 01/2009 are roughly as follows:

No mint mark:

Very worn condition - $126

Moderately worn - $138

Slightly worn - $172

Little or no wear - $202

"O" mint mark: $126 / $160 / $186 / $270

"D" : $360 / $840 / $1130 / $1800

"C" : $390 / $700 / $970 / $1340

I bought one for $200.00 in AU55 condition from a dealer in Ohio.