I Have Few Pieces Of Jewelry I want to sell so I wan to know How To Sell Gold Jewelry

I have lots of gold jewelry I would like to sell. How can I find tips about how to sell gold jewelry?

Should I try one of the companies advertising on TV saying they’ll buy old or broken gold jewelry?

Well so far I have done some search online and come across many sites who provide tips to selling gold jewelry.
I also came across some companies who can buy my jewelry. Just want to know if anyone else have any more advise...