Also, just to give you a comparative reference, 1/4 oz. is a tiny, tiny smidge under 8 grams. IIRC, a US nickle is 5 grams when newly minted. Thus a typical RM coin weighs about 1 1/2 times as much as a nickle. For a metal as heavy as gold, 1 1/2 times the weight would probably be pretty close to the same size.