About NGC

With a firm commitment to accuracy, consistency and integrity, Numismatic Guaranty Corporation™ (NGC^®) is a leading third-party grading service for coins, tokens and medals. Since 1987, NGC has graded more than 46 million coins, each one backed by the comprehensive NGC Guarantee.

Our Grading

NGC employs more than 30 full-time coin graders as well as outside consultants. To ensure impartiality, NGC and its full-time graders do not buy and sell coins commercially, and strict procedures are in place to prevent consultants from influencing the grades assigned to their own submissions. The combined expertise of the NGC grading team results in unparalleled accuracy and consistency.
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Our Holder

NGC invested more than £500,000 in research and development to create the most advanced protective holder for coins, tokens and medals. Designed for long-term preservation, the NGC holder is used by the Smithsonian Institution and other museums around the world to protect their most treasured rarities.
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Our Guarantee

Collectors have greater confidence in NGC-certified coins because the coins are backed by the NGC Guarantee, the strongest in the industry. The NGC Guarantee provides one of several remedies in the rare event that an NGC-certified coin is determined to be not genuine or overgraded.
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Free and easy
review process

No cap
on payments

Protects
consumers

Higher Prices Realized

Collectors and dealers pay more for coins graded by NGC and, as a result, NGC coins and collections have achieved many world record prices at auction.

Most Coins Graded

NGC has graded more than 46,000,000 coins from virtually every past and present country

Unique Partnerships

NGC is the official grading service of the American Numismatic Association (ANA), the only coin collecting organization chartered by the US Congress, the Professional Numismatists Guild (PNG), the Macau Numismatic Society (MNS), the National Silver Dollar Roundtable (NSDR) and Roundtable Trading, LLC/Coin Dealers Helping Coin Dealers (CDHCD).
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