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Collectors Universe Inc. is an American company formed in 1986, now based in Santa Ana, California, which provides third-party authentication and grading services to collectors, retail buyers and sellers of collectibles. Its authentication services focus on coins, trading cards, sports memorabilia, and autographs.
NGC certifies most US, world, and ancient coins, tokens, and medals. The certification process consists of authentication, grading, attribution, and encapsulation in plastic holders or Coin slabs. Certification fees are tiered according to value, turnaround times, and extra services. NGC has certified over 50 million coins.
The firm evaluates certain numismatically valuable U.S. coins already certified by Numismatic Guaranty Corporation (NGC) or Professional Coin Grading Service (PCGS). [1] [2] Coins that CAC deems high-end for their grades receive green stickers, [3] which usually add premiums ranging from single digit percentages to 92% or more.
Certified Guaranty Company, also known as CGC, is a Sarasota, Florida comic book grading service. CGC is an independent member of the Certified Collectibles Group of companies. It is the first independent and impartial third party grading service for comic books.
Beckett Media operates a sports card grading service named Beckett Grading Services. This service holds the exclusive rights to grade and authenticate trading cards from the Topps Vault . [ 12 ] [ 13 ] In 2016, Beckett Media inaugurated an autograph verification enterprise called Beckett Authentication Services.
Coin grading [1] is the process of determining the grade or condition of a coin, one of the key factors in determining its collectible value. A coin's grade is generally determined by six criteria: strike, preservation, luster, color, attractiveness, and occasionally the country/state in which it was minted. Several grading systems have been ...
At the outset, the business faced difficulties owing to a limited demand from collectors who sought card grading services. [2] Initially, many sports card dealers were against the concept of relying on an external organization to evaluate and grade their cards. They declined to utilize card grading services.
Paper currency grading is the process of determining the grade or condition of a bank note, one of the key factors in determining its collectible value. A banknotes grade is generally determined by crispness (Rigid, not limp paper), brightness, and depth of color.