Numismatic Guaranty Corporation (NGC) - All About Coins

With a firm commitment to accuracy, consistency and integrity, Numismatic Guaranty Corporation (NGC) is a leading third-party certification and grading service for coins, tokens and medals. Since 1987, NGC has graded more than 47 million coins, each one backed by the comprehensive NGC Guarantee.

12 NGC-certified coins sell for over $1 million in 2021 - All

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Preserving the Grades of Coins

NUMISMATIC GUARANTY CORPORATION OF AMERICA, NGC - 23 Reviews

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What Is NGC- Numismatic Guaranty Corporation? - Coin News

Numismatic Guaranty Corporation of America (NGC)

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NGC Grades 45 Million Coins