During the second half of 2007, eBay imposed limitations on the sale of certified coins from certain third party grading services.  While the packaging for certified coins may look the same between vendors, the guidelines used for grading coins vary enormously.  EBay has designated certain companies as "authorized grading companies."  Presumably, these companies provide more consistent coin grading that meets industry expectations.  For the rest of the grading companies, limitations are imposed on Sellers for describing those coins in their listings for the benefit of potential Buyers.  Indeed, coins slabbed by other services must be treated as "raw" or ungraded when listed on eBay.

The authorized companies include NCS, NGC, PCGS, ICG and ANACS.  Coin Listing Guidelines

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The three (3) organizations that in our opinion have consistency for reaching industry acceptable grading and have better than average acceptance in sight-unseen trading are:

• ANACS, 6555 S. Kenton St, Suite 303, Englewood, CO 80112

• NGC or Numismatic Guaranty Corporation of America, P.O. Box 4776, Sarasota, FL 34230

• PCGS or Professional Coin Grading Service, P.O. Box 9458, Newport Beach, California   92658

   

Each of these third party grading services has a presence on the Internet.  You can Google their names to bring up their websites with further information regarding the process of submitting coins for grading.