Numismatic Guaranty Company

When NGC was founded in 1987, it heralded the introduction of a new standard of integrity in coin grading. From the beginning NGC focused on only one objective, a standard of consistent and accurate grading.

About NGC

As NGC has grown to become the leader in third-party grading services, we have maintained a steadfast and uncompromising commitment to this standard. The knowledge, integrity and dedication of NGC’s team of numismatic professionals ensures you a level of grading consistency unparalleled among grading services. This record of consistency, built over the years, has helped to foster greater stability throughout the rare coin marketplace.

NGC Guides & Services

Learn More About NGC

Numismatic Guaranty Company (NGC) has released a video that highlights the benefits of NGC certification and other ways NGC has helped the numismatic hobby.

NGC is committed to accuracy, consistency and integrity. These principles have led NGC to become the world’s largest third-party coin grading service, with more than 45 million coins certified since it was founded in 1987

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Numismatic Guaranty Company (NGC)

Jeff Garrett: Tips for Collecting Indian Half Eagles, Part I

By Jeff Garrett for Numismatic Guaranty Corporation (NGC) ......   Recently, I discussed the very popular Indian Quarter Eagle series. The Indian Quarter Eagle set consists...
Jeff Garrett: Collecting Barber Coinage

Jeff Garrett: Collecting Barber Coinage

A basic set of Barber coins can be easy to assemble, but there are ways to make it more of a challenge   By Jeff Garrett...
Jim Bisognani: Coin Auction Innovation

Jim Bisognani: Coin Auction Innovation

By Jim Bisognani – NGC Weekly Market Report ......   I can hardly fathom that it’s June already. This year is almost half over, and it...
NGC Now Grading London City View Coins

NGC Now Grading London City View Coins

Numismatic Guaranty Company (NGC) is now receiving submissions of The Royal Mint's City View Coinage, which debuts with the City of London. Sovereign Rarities and Numismatica Genevensis...
Jeff Garrett: Weighing the Opportunities in Coin Collecting

Jeff Garrett: Weighing the Opportunities in Coin Collecting

By Jeff Garrett for Numismatic Guaranty Corporation (NGC) ......   Whenever someone sits down with a financial consultant to make determinations for investing, one of the...
Una and the Lion Leads NGC-Certified SINCONA British Coins Collection

NGC-Certified Coins From SINCONA British Collection Realize $5.8 Million

With a highly prized Una and the Lion leading the way, more than 400 rare coins from a phenomenal collection of British coins certified...

Collecting Classic Silver Commemorative Coinage (1892–1954)

A look at this often-underrated yet highly interesting series   By Jeff Garrett for Numismatic Guaranty Corporation (NGC) ......   For anyone looking for value when trying to...
Three NGC Vintage Chinese Coins Each Realize Over $1 Million in Taisei Auction

Three NGC Vintage Chinese Coins Each Realize Over $1 Million in...

Three highly valuable vintage Chinese coins certified by Numismatic Guaranty Company (NGC) each sold for over $1 million USD in a sale presented by Taisei...

Jeff Garrett: ANA Summer Seminar – A Chance to Learn From...

By Jeff Garrett for Numismatic Guaranty Corporation (NGC) ......   After a nearly three-year hiatus, the ANA Summer Seminar returns to Colorado Springs this year. Strict...

Coin Collecting Strategies – Collecting By Die Variety

By Jeff Garrett for Numismatic Guaranty Company (NGC) ......   In coin collecting, there is no right or wrong decision when it comes to deciding which...

Counterfeit Coin Detection – 1795 Flowing Hair Half Dime

Counterfeit 1795 Half Dime Reverse   By Max Spiegel –  Numismatic Guaranty Corporation ......   Counterfeit half dimes are not particularly common, but NGC graders recently identified a...
Counterfeit Coin Detection – 1880 Shield Nickel

Counterfeit Coin Detection – 1880 Shield Nickel

Counterfeit 1880 Shield Nickel   Counterfeit Coins by Max Spiegel –  Numismatic Guaranty Corporation ......   Even with only a quick glance, a number of problems with this...
Jeff Garrett: At Coin Auctions, It Pays to Have an Expert by Your Side - NGC

Jeff Garrett: At Coin Auctions, It Pays to Have an Expert...

By Jeff Garrett for Numismatic Guaranty Corporation (NGC) ......   As nearly everyone who buys rare coins these days knows, a large percentage of the buying...
NGC Honors Mike Castle With New Congressional Series Label

NGC Honors Mike Castle With New Congressional Series Label

Numismatic Guaranty Company (NGC) is proud to announce an exciting new Authentic Hand-Signed label that recognizes the contributions to numismatics made by the Honorable...

Counterfeit Coin Detection – 1872 Seated Liberty Silver Counterfeit Dollar

1872 Seated Liberty Counterfeit Dollar By Max Spiegel – Numismatic Guaranty Company (NGC) ......   Rough texture and minuscule raised dots within the recesses are clues that...