With an unparalleled commitment to accuracy, consistency and integrity, Numismatic Guaranty Company (NGC®) is the world's largest and most trusted third-party grading service for coins, tokens and medals. Since 1987, NGC has graded more than 52 million coins, each one backed by the industry-leading NGC Guarantee.
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.
Learn more >
NGC invested more than $1 million 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.
Learn more >
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. Many NGC-certified coins have broken the $1 million barrier, including the first Chinese coin ever to do so.
Most Coins Graded
NGC has graded more than 52,000,000 coins from virtually every past and present country
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).
View all NGC Affiliates >
Join NGC for free to add coins, track your collection and participate in the NGC Registry. Learn more >