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Using authentication and grading services

Authentication and grading services can help you evaluate an item. An independent, experienced evaluator can help examine a listing on eBay and point out potential problems.

About authentication and grading services

Buyers can get an item evaluated before purchasing it or get an evaluation of a recently purchased item. Sellers can boost bidder confidence by having items authenticated before listing an item. Sellers can also promote the fact that an independent expert has authenticated the item, which lets bidders know that the item has been examined by an experienced professional who has pledged to provide an unbiased opinion.

  • Authentication services: Authentication helps determine whether an item is genuine and described appropriately. Experts can often detect counterfeits from subtle details. However, 2 expert authenticators can have different opinions on the authenticity of the same item.  

  • Grading services: Grading is a way of determining the physical condition of an item. The grading system depends on the type of item being graded.  

Authentication companies

The authentication companies listed below are professional, independent evaluators. We’ve obtained a pledge from these evaluators that they'll offer their services to both buyers and sellers, and that they'll maintain independence from any individual party. The authenticators have pledged not to buy or sell on eBay's core site, keeping them out of competition with the buyers and sellers they are serving. They've also promised to provide eBay users with competitive prices.

List of authentication companies


For an online appraiser, contact What's It Worth To You.


Authenticate sports autographs and memorabilia with:

Pre-certified autograph companies:

Beanie Babies

Use Peggy Gallagher Enterprises to authenticate your Beanie Babies.


Get your coins graded with:


Use CGC to have your comics graded.


The International Gemological Institute (IGI) certifies jewelry, diamonds, and other gemstones.

Political memorabilia

Contact the American Political Items Collectors (APIC) to learn more about materials relating to political campaigns.


Authenticate your stamps with:

For authentication and grading, contact Professional Stamp Experts (PSE).

Trading cards

Grade your trading cards with:

Misrepresented items

If an expert says that an item on eBay is not accurately represented, we reserve the right to remove it if we believe that its sale might create liability for the buyer, the seller, or any third party. If this happens, we’ll refund the listing fee to the seller.

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