Numismatic Guaranty Company

NGC was founded in 1987 and has become one of the largest third-party grading services. Their parent company is the Certified Collectibles Group (CCG).
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Recent Articles by this Author

Norway (1661) 10 Ducat – Fort Aggershus

Stack’s Bowers Offers $1 Million Norwegian Ultra-Rarity in L.E. Bruun Collection Auction

Stack’s Bowers Galleries has launched one of the most important Scandinavian coin sales in recent years. The March 2026 L. E. Bruun Collection ,...
China 2025 Silver Dragon Bullion Coin

NGC Signs Exclusive He Chun Signature Label for 2025 Silver Dragon Coin

He Chun Signature Label debut on new Silver Dragon bullion coin Numismatic Guaranty Company® (NGC®) has signed an exclusive agreement with He Chun, the designer...
NGC Year End Market Report with Jim Bisognani

Jim Bisognani: My 15th Annual NGC Year in Review – Part 1

I know I speak for many of my fellow coindexters for the NGC Year In Review Market Report when I ask: Where did 2025...

Unique 1609 Segovia 100 Escudos, Certified by NGC, Poised to Realize Millions

A spectacular NGC-certified gold rarity is set to be one of the year’s most closely watched offerings as Numismatica Genevensis SA (NGSA) opens bidding...
Bohemia 1629 Prague 100 Ducats graded NGC AU 58

NAC Offers More NGC-certified Traveller Collection Coins, Including a Seven-figure Ultra-rarity

By Numismatic Guaranty Company One of the most valuable coins in the world is expected to realize seven figures as it is offered alongside other...

Counterfeit Coin Detection – A Fake 1861 Type 2 US Gold Quarter Eagle

Counterfeit coin - 1861 Type 2 Quarter Eagle   By Max Spiegel - Numismatic Guaranty Company (NGC) ...... Raised lumps of metal and lack of detail are...
1950-S Roosevelt Dime After conservation. Image: NGC / CoinWeek.

NGC Conservation: Passive Versus Direct Residues

By Numismatic Guaranty Company (NGC) … Although passive residues develop because of improper storage, more direct residues, such as glue left on the surface of a...
NGC Summer 2025 CrossOver Special. Image: NGC / CoinWeek.

NGC Announces Limited-time CrossOver Special Just in Time for the Summer FUN Show!

by Numismatic Guaranty Company... If you’ve been thinking of submitting your coins for certification and encapsulation by Numismatic Guaranty Company (NGC), now is the time!...
Exclusive DC labels offered by NGC.

It’s a Whole New Universe! CGC and NGC Unveil DC Custom Labels

DC custom labels are an addition to your comics, cards and coins! The announcement that DC fans have been waiting for is finally here! For...
2012 Casascius 1000 Bitcoin. Image: NGC.

Heritage Offers Dozens of NGC-certified Cryptocurrency Rarities

Heritage Auctions is offering more numismatic rarities from the Otoh Collection that were created as part of an innovative strategy to put Bitcoin in...
AI generated image of a container ship. Image: CoinWeek/Grok.

CCG Guidance on International Submissions and Tariffs

The Certified Collectibles Group (CCG) (and Numismatic Guaranty Company - NGC) serves the collectibles market worldwide through a network of offices and Official Submission...
Players of the EIGHTH ERA mobile video game have a chance to win NGC-certified ancient coins, such as this representative example of a Constantine I coin. (Photo courtesy of NGC). Tabarsitan hemidrachm: This is a representative example of an 8th century Tabarsitan coin from Persia that is one type of the NGC-certified ancient coins players of the EIGHTH ERA mobile video game have a chance to win. (Photo courtesy of NGC).

NGC-Certified Ancient Coins Are Prizes in Groundbreaking New Mobile Game

Players of the EIGHTH ERA mobile video game have a chance to win NGC-certified ancient coins. (Photo courtesy of NGC). To celebrate more than 100,000...
NGC Bruun Collection

NGC Coins of Historic L.E. Bruun Collection at Auction This Week

  Numismatic history is expected to be made this week as Stack's Bowers Galleries presents an unprecedented auction of Scandinavian rarities from the L.E. Bruun...
1924 Olympics Gold Medal. Image: NGC / CoinWeek.

NGC Certifies Olympic Medal From 1924 Summer Games in Paris

Numismatic Guaranty Company (NGC) is proud to have certified a rare first-place Olympic medal from the 1924 Summer Olympics, which were held in Paris...
1496 Denmark Noble Gold Coin. Image: Stack's Bowers / CoinWeek.

NGC Grading World-Renowned L.E. Bruun Collection Offered by Stack’s Bowers

Numismatic Guaranty Company (NGC) has been selected to authenticate and grade the collection of Lars Emil Bruun, which represents the most impressive group of...
NGC-X Trading Coins.

NGCX Certifies Trading Coin

Numismatic Guaranty Company (NGC) has announced that NGCX is certifying precious metal legal tender trading coins created by Celebrity Mint. NGCX, of course, certifies...
The first and last 100 pound coins struck with Queen Elizabeth II / King Charles effigies. Image: Stack's Bowers / CoinWeek.

Stack’s Bowers Offers Royal Succession Coins Certified by NGC

Numismatic Guaranty Company (NGC) is honored to have certified a magnificent group of coins that mark the historic transition of British coinage from Queen...

The 1920 Wilson Dollar: A Counterfeited Rarity

An elusive Wilson Dollar medal represents a challenge for collectors of higher grades   The Wilson Dollar by Numismatic Guaranty Company ...... The Wilson dollar was struck...

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 Company (NGC) ......   In the early part of...
NGC announces new, more secure holograms and barcodes. Image: NGC.

NGC Introduces High-Security Hologram With Unique QR Codes

Numismatic Guaranty Company (NGC) is introducing a new high-security hologram as part of its comprehensive efforts to combat counterfeiting and create a safer marketplace...

David Lawrence Rare Coins Auctions

Blanchard and Company Gold and Precious Metals

Mid America Rare Coins - Jeff Garrett

Atlas Numismatics World and Ancient Coins

Mid America Rare Coins - Jeff Garrett