Is there a gold 2002 Louisiana quarter?

No. The US never made gold quarters. For one thing, they'd be worth hundreds of dollars so it wouldn't make any financial sense to put them in circulation at 25¢ each!

What you have is a coin that was plated for one of those "special collectibles" sets sold on TV and in the backs of popular magazines. The coins underneath are worth exactly a quarter, the gold plating is worth only a few cents, the package is a couple of bucks. The rest of the $25 to $100 price covers nothing but advertising and hype.

That's not all the price covers. There is also a huge profit to the promoter.