Numismatic Guaranty Corporation

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 Corporation® (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 Corporation (NGC)

NGC-Certified Ancient and World Coins Featured in Monaco Sale

The October sale is offering over 300 NGC-certified world and ancient coins   Ancient and World Coins certified by Numismatic Guaranty Corporation (NGC) are being featured...
NGC Counterfeit 1903-S

Counterfeit Coin Detection – 1903-S Added S Morgan Dollar

A prominent area of discoloration around the mintmark is a sign that this Morgan Dollar is a counterfeit.   Morgan Dollar Counterfeit by Numismatic Guaranty Corporation...

Finest-Graded Una and the Lion, Certified by NGC, Offered in MDC...

The finest graded example of the "Una and the Lion", a coin that is at the zenith of British numismatics, is being offered in...

NGC Ancients Certifies Fabled ‘EID MAR’ Aureus of Brutus

Perhaps the most important and valuable Roman coin ever to be offered at auction — an ‘EID MAR’ aureus of Brutus in Mint State...

Jeff Garrett: Fractional Gold Comes to Market

Collecting California fractional gold coins is a fascinating pursuit, as many of the coins are tangible links to one of the most exciting eras...

Stunning NGC-Certified Connecticut Coppers From Partrick Collection Being Sold

More than 500 Connecticut Coppers certified by Numismatic Guaranty Corporation (NGC) from the Donald G. Partrick Collection are being offered for sale, representing an...

Counterfeit Coin Detection – 1854-O Arrows Seated Liberty Half Dollar

Counterfeit 1854-O Arrows Seated Liberty Half Dollar Counterfeit Coins Profiled by Numismatic Guaranty Corporation ..........   Numerous issues, such as depressions, raised lines, porosity and die damage,...

The Bruce Morelan Collection – Lots You Need to Know: CoinWeek...

 CoinWeek Streaming News is brought to you by NGC. For information about NGC’s current grading specials and services, as well as to look up certs,...

NGC-Certified 1907 High Relief Double Eagle Sells for $660,000 at Heritage...

An exceptional 1907 High Relief Double Eagle certified by Numismatic Guaranty Corporation (NGC) realized $660,000 in the Heritage US Coins Signature Auction held from September 18-20,...

Counterfeit Coin Detection – Australian Gold Sovereign of 1917 From...

NGC graders recently identified a fake 1917 gold sovereign with the “P” mintmark of the Perth Mint in Australia.   By Max Spiegel - Numismatic Guaranty Corporation...
The 1909-S VDB Lincoln Cent and How It Changed the Hobby: CoinWeek Streaming News

The 1909-S VDB Lincoln Cent and How it Changed the Hobby:...

CoinWeek Streaming News is brought to you by NGC. For information about NGC’s current grading specials and services, as well as to look up certs,...

Jeff Garrett: US Gold Coins Coming Home

In the last few years, the amount of US gold coins arriving from overseas sources has risen dramatically   By Jeff Garrett for Numismatic Guaranty Corporation...

NGC-Certified English Gold Coin Realizes Over $300,000 in Spink Sale

A rare English gold coin struck during the reign of Queen Anne and certified by Numismatic Guaranty Corporation (NGC) realized over $300,000 – more than double...

Royal Mint Partners With NGC to Offer Certified Coins

The Royal Mint, the official mint of the United Kingdom, has partnered with Numismatic Guaranty Corporation (NGC), the world's largest third-party coin grading service. For...

NGC-Certified English Gold Coins Showcased in Spink Sale

Numismatic Guaranty Corporation (NGC) has certified over 200 outstanding English gold coins that are now being offered in the Stratos Sale of Spectacular English Gold...