What is 2002 Elizabeth gold coin worth?

You have to explain what type of coin it is. Is it a British Sovereign? Canadian Maple Leaf? Australian Nugget? Etc. There are many modern bullion coins that feature Queen Elizabeth II on the obverse ("heads") but for modern bullion coins it is usually worth simply the precious metal content of them. On most bullion coins other than the British Sovereign it will say something like "One troy ounce pure gold" or "one half troy ounce pure gold" then you find out the spot price of gold and figure out how much gold is in your coin and figure it out from there.