They would certainly be worth more than merely the gold by weight...to a collector...providing the collector was honest and told you what they were worth.

Your best bet might be to sell them online through something like Ebay...as this way the competition among the collectors themselves would drive the price up to a reasonable level. You might take a look on Ebay and see what similar items are going for before deciding. If you do sell on Ebay, set a reserve price on the item at the lowest price you are willing part with it on.