NGC

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NGC is the world's largest third-party coin grading service, offering accurate, consistent, and impartial authentication and grading backed by the NGC Guarantee.

Data & Analytics

Research & Education

Document Tools

About

NGC (Numismatic Guaranty Company) has been the gold standard in coin grading since 1987, serving collectors, dealers, and investors worldwide. As the world's largest third-party coin grading service, NGC offers professional authentication and grading for US coins, world coins, ancient coins, tokens, and medals — all backed by the NGC Guarantee to protect buyers and sellers alike. NGC provides a full suite of numismatic services including specialty certifications (NGCX, NGC Green Label, Ancients, Shipwreck), imaging services, and conservation. Collectors can submit coins directly or through authorized dealers, with transparent services and fee schedules. Beyond grading, NGC offers powerful research tools: the NGC Coin Explorer, comprehensive US and World Coin Price Guides, the NGC Census for rarity research, auction results archives, and counterfeit detection resources. The NGC Registry allows collectors to showcase and compare their certified collections. NGC Certification Verification lets anyone confirm the authenticity of an NGC-certified coin by entering its certification number, and the mobile app brings grading lookup and collection management to smartphones. NGC is part of the Certified Collectibles Group, whose mission is to empower collectors with services that ignite passion, create value, and build community — making NGC the trusted choice for serious numismatists at every level.

Key Features

Professional Coin Grading: Expert authentication and grading of US coins, world coins, ancient coins, tokens, and medals using a standardized grading scale, backed by the NGC Guarantee.
NGC Certification Verification: Instantly verify any NGC-certified coin's authenticity and grade online by entering its certification number or scanning the QR code on the holder.
Comprehensive Price Guides: Research market values for US and world coins struck from 1600 to present, including Chinese Modern and World Gold Coin value guides.
NGC Census & Rarity Research: Access population data to discover the relative rarity of NGC-certified coins, tokens, and medals across all grades.
NGC Registry & Collection Tracking: Build and showcase your certified coin collection, compete in registry sets, and track submission statuses through a personal account.

Use Cases

A coin collector submits rare US coins to NGC for professional authentication and grading before listing them for sale at auction.
A numismatic investor uses NGC Price Guides and Census data to research the rarity and market value of specific coins before making purchase decisions.
A buyer purchasing an NGC-certified coin online uses the Certification Verification tool to confirm the coin's grade and authenticity before completing the transaction.
A collector builds and displays a competitive registry set of NGC-graded coins, comparing their collection against other collectors worldwide.
A dealer uses NGC's counterfeit detection resources and specialty certification services (Ancients, Shipwreck) to authenticate and add value to unique inventory.

Pros

Industry Gold Standard: NGC is the world's largest and most trusted third-party coin grading service with nearly 40 years of expertise, giving certified coins broad market acceptance.
Comprehensive Research Tools: Free access to price guides, census data, auction archives, and the NGC Coin Explorer makes it a one-stop resource for numismatic research.
Backed by the NGC Guarantee: Every certified coin is protected by the NGC Guarantee, providing financial assurance for both buyers and sellers.

Cons

Grading Fees Can Be Costly: Professional grading and certification services require submission fees that may not be economical for lower-value coins.
Turnaround Time: Depending on the service tier chosen, grading submissions can take days to weeks, which may be inconvenient for time-sensitive transactions.

Frequently Asked Questions

NGC (Numismatic Guaranty Company) is a third-party coin grading service that independently authenticates and grades coins, tokens, and medals, then encapsulates them in a tamper-evident holder with the certified grade.

You can submit coins directly to NGC by visiting their website, selecting appropriate services and fees, filling out a submission form, and mailing your coins. Submissions can also be made through authorized NGC dealers.

Enter the coin's NGC certification number and grade at ngccoin.com/verify, or scan the QR code on the back of the NGC holder with your smartphone to confirm its authenticity and grade in the NGC database.

The NGC Guarantee protects buyers and sellers by warranting the authenticity and grade of every coin that NGC certifies, providing financial recourse if a coin is found to be incorrectly graded or not genuine.

Yes, you can join NGC for free to add coins to your collection tracker and participate in the NGC Registry. Coin grading and certification services are paid on a per-submission basis.