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.

NGC Announces Label Buyback Program - American Numismatic

Numismatic Guaranty Corporation (NGC) - All About Coins

Numismatic Guaranty Corporation is Now Numismatic Guaranty Company

NGC introduces New High-Security Hologram with QR Codes

NUMISMATIC GUARANTY CORPORATION OF AMERICA, NGC - 23 Reviews

NGC introduces New High-Security Hologram with QR Codes

NGC Cert Lookup, Verify NGC Certification

Numismatic Guaranty Corporation Is Now Numismatic Guaranty Company

NGC-certified Cuban gold coins far exceed estimates at auction