A Proof 70 coin is a specially struck collector coin graded on a 1–70 scale, with 70 meaning flawless surfaces and perfect condition even under magnification. It represents the highest possible grade, making it extremely desirable and often more valuable to collectors.
A gem proof coin is deliberately struck multiple times with polished dies and planchets, producing razor-sharp details and mirror-like fields, making it a premium collectible with high numismatic value. Precisely minted, imperfections and blemishes are not as common on gem proof coins, though it is possible from time to time.
Proof-like bullion is a standard bullion strike that happens to show reflective surfaces—attractive but less precise than a gem proof strike, without the intentional craftsmanship or strong contrast of true proofs. Bullion coins are expertly minted, though natural variations, blemishes, and imperfections are not uncommon and are usually not visible without close inspection.
