Do bullion coins come with a certificate of authenticity?
Yes, a maker’s mark and statement of weight and fineness is stamped directly onto the bullion, whether coins or ingots. The bullion itself, in effect, bears its own “certificate” from whichever mint or refiner produced it. Gold, specifically, is an element with a unique specific gravity, and other attributes which are easy to test for authenticity. The ancient Egyptians pioneered the “acid test” for gold, and any jeweler or pawnbroker can demonstrate the basics of gold.
