What are my gold coins worth
As the value of gold, and even silver, increases in value and the rarity of you coins increase, especially if you have collected those of a limited mintage or older, rarer coins in near perfect condition, it is very likely that your coin collection will have increased in value quite satisfactorily.
Provided of course that you have kept the coins in the same condition as when they were first purchased. Never taking them out of their sealed packaging so they do not get damaged or, in the case of silver, tarnished. Never clean them and keeping them out of direct sunlight.
Now there are various sites one can go to to get a good idea of the value of your coins.
What’s my gold coins worth?, and What are gold coins worth are two such sites and there are many others.
One can also check out the various coin auctions and eBay and see what the same coins are fetching on the open market.
Of course one can get a valuation done of various coins or even the entire collection and really one should on a regular basis at least yearly. This is a good idea for insurance purposes among others. In this way one would get a registered coin dealer to do a valuation and give you a written official result.
Whatever you do it is safe to say that the answer to the question, "What’s my gold coin worth?" is, "more than it was when I bought the coins!"