It is the only Three Dollar gold piece produced at the New Orleans mint and therefore very popular. 

More common coin in lower grades and usually seen in the VF to EF range. It is scarce to rare in properly graded as AU.

Looking through the eBay listings, almost all are x-jewelry, damaged or have similar issues. This one has just plain old wear with no major distractions.

All coins sent through USPS

See my eBay store for a wide variety of additional coins.