Looks fake to me. I'd buy one certified, that's what I did. Don't settle for a lower grade and get ripped off, I'd rather wait and save more money and buy a higher grade slabbed.
How confident are you in your ability to distinguish fakes? If it's a counterfeit, but still minted in coin gold, sure, it's worth melt. If it weighs the right amount and has the right dimensions, there isn't much else it could be -- tungsten is about the only thing that's as dense as gold and significantly cheaper, and it's pretty hard to work, so I don't think gold-plated tungsten coins are common yet. I would buy this for $1400 or even $1500 on eBay, because I'd know I could take my time authenticating it and then use Buyer Protection if it's fake. I wouldn't touch it in a non-reversible transaction.
NO! you maybe buying Gold plated Brass copy that was made before 1970's when there was no law that made minters put the word Copy on Copied coin's