Sounds like a great way to get scammed! Gold is already very liquid with a real time price on multiple metal exchanges across the globe.

Unless you have a lot, you probably won’t get close to spot price. You might be able to find some local artisans that will pay better for small amounts then the big houses will. Gold in stamped form has the greatest value. Nuggets or mined gold, some buyers are afraid of and won’t pay until it’s melted.

Gold teeth are worth the absolute least.