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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

NGC 30th Anniversary Video

6/21/2017

The video highlights some of the company’s achievements, including its international expansion

Numismatic Guaranty Corporation® (NGC®) has released a video to celebrate its 30th anniversary.

Founded in 1987, NGC has been 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 37 million coins certified.

The NGC 30th Anniversary Video highlights some of the company’s achievements, including its international expansion. NGC now grades coins full-time at its offices in the United States and China and operates Official Submission Centers in China, Germany, Hong Kong, Korea, Singapore and Japan.

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Numismatic Guaranty Corporation (NGC)

Jeff Garrett: Collecting Error Coins

How to get comfortable in this challenging and fascinating corner of numismatics   By Jeff Garrett for Numismatic Guaranty Corporation (NGC) ......   My daily assortment of emails...

NGC Certifies Extremely Rare 1819 British Sovereign for Royal Mint

The Royal Mint of the United Kingdom entrusted Numismatic Guaranty Corporation® (NGC®) to certify an example of one of the greatest rarities of British...

NGC Ancients – Coins From the Strait of Messina

Ancient Coins issued from colonies bordering the Strait of Messina are numerous and interesting Strait of Messina Coins By Numismatic Guaranty Corporation (NGC) ......   The Strait...

Jim Bisognani: November Market Report

Shopping at the Baltimore Whitman Winter Expo and at a mammoth Stack’s Bowers sale; plus, it’s time to cozy up — with your coin...

Counterfeit Coin Detection – Altered Date 1815 Half Dollar

The altered date on this half dollar imitates a true numismatic rarity   Altered Date Counterfeits by Numismatic Guaranty Corporation ......   In the early part of the...

CoinWeek Video: Jeff Garrett and the Great Southern Treasury Hoard of...

By CoinWeek .....     Near the beginning of last month, CoinWeek traveled to NGC headquarters in Sarasota, Florida, to get a first look at the Great...

John Boehner, 53rd Speaker of the US House of Representatives, Agrees...

The Honorable John Boehner, who represented Ohio in the US House of Representatives from 1991 to 2015 and served as Speaker of the House...

NGC, PMG Grading On-Site in India for the First Time in...

Numismatic Guaranty Corporation®  is pleased to announce that it will conduct on-site grading in Mumbai, India, in April 2020. This is the first time...

Jeff Garrett: The Future of Coin Conventions

Collector camaraderie keeps coin shows going strong   By Jeff Garrett for Numismatic Guaranty Corporation (NGC) ......   During my tenure as a member of the Board of...

NGC Ancients – Bridges on Roman Coins

A number of Roman coins depict bridges, although not always exact likenesses   Bridges on Roman Coins by Numismatic Guaranty Corporation (NGC) ......   As engineers and architects,...

NGC Introduces Multi-Coin Holder for 4, 5 or 6 Coins

Numismatic Guaranty Corporation® (NGC®) has announced a new NGC Large Multi-Coin Holder, a single holder that can encapsulate four, five or six coins. The Large...

NGC, NCS and PMG Named Official Grading, Conservation Services of A....

Numismatic Guaranty Corporation® (NGC®) and Paper Money Guaranty® (PMG®) have been named the Official Grading Services of A. Karamitsos International Auctions, an esteemed auction house...

NGC-Certified Rarities Offered at Gadoury Auction in Monaco

This Gadoury auction includes Part 2 of an extensive collection of numismatic rarities of the House of Savoy, which originated from the possessions of...

NGC, Harvestor Investments Partner on Label for New Marvel Avengers Logo...

Numismatic Guaranty Company® (NGC®) and Harvestor Investments have partnered to create a special NGC Marvel® Avengers certification label for the new Avengers Logo 1...

NGC Certifies Important Early Islamic Gold Coin

Numismatic Guaranty Corporation® (NGC®) has certified an extremely rare and historically important Islamic gold coin struck in the seventh century. The Umayyad Dinar is dated...