Numismatic Guaranty Corporation (NGC)

NGC is the world’s leading and largest third-party grading company, having graded more than 39 million coins. Over the last 30 years NGC has graded many of the world’s most important coins and collections, including pieces from the Smithsonian Institution, the national museum of the United States, and the Shanghai Mint Museum.

Collectors and dealers prefer NGC for its accuracy, consistency, and integrity. Coins that have been graded and authenticated by NGC are backed by the NGC Guarantee. Our graders are completely impartial and do not buy or sell coins commercially.

In addition to expert grading and authentication services, NGC provides valuable resources to collectors on its website. A few of the most popular features are the NGC Registry the NGC Census, and the NGC Price Guides