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Opinions, Authentication & Grading

You've come to the right place if you need a professional opinion on your item's authenticity or condition. To help you find the right type of expertise, eBay has links to companies that provide this specialized service.

  • Opinions. Get a quick, preliminary opinion online regarding an item's authenticity before you buy or sell it. This service is currently available only for sports autographs and memorabilia.

  • Authentication. Find out whether an item is genuine based on an independent authenticator's physical inspection.

  • Grading. Determine the physical condition of an item.

For more information about Authentication & Grading, take a look at some Frequently Asked Questions.

Simply click on the company you're interested in for more information about their services, pricing, and credentials.

Beanie Babies
 
Coins Use Peggy Gallagher Enterprises, Inc. to authenticate your Beanie Babies.


Coins
 
Coins Get your coins graded with NGC.
Coins Use PCGS to grade your coins. About PCGS.


Comics
 
Comics Use CGC to have your comics graded.


Jewelry
 
Jewelry IGI certifies jewelry, diamonds, and other gemstones


Native American Artifacts
 
Contact the AACA to learn more about Native American artifacts.
 
Political Memorabilia
 
Contact the APIC to learn more about Political Memorabilia.
 
 
Stamps
 
Stamps Authenticate your stamps at the APS.
 
Stamps PSE will authenticate and grade your stamps.
 
Stamps Authenticate your stamps at the Philatelic Foundation


Trading Cards
 
Trading Cards Grade your trading cards with BGS.
 
Global Authentics Grade your trading cards with GAI.
 
Trading Cards Grade your trading cards with PSA. About PSA.
 
Trading Cards Grade your trading cards with SGC.
 


Autograph Authentication
 
Global Authentics Authenticate sports autographs and memorabilia with Global Authentication.
 
Sports Autographs & Memorabilia
Authenticate sports autographs and memorabilia with James Spence Authentication.
 
Sports Autographs & Memorabilia Authenticate sports autographs and memorabilia with OnlineAuthentics.com.
 
Sports Autographs & Memorabilia Authenticate your autograph with PSA/DNA. About PSA/DNA.


General
 
Contact What's It Worth To You for an online appraisal.
 

Contact the International Society of Appraisers to find an appraiser in your local area.


NOTE: The opinions expressed by these evaluators are theirs alone. eBay does not examine items listed on its site and does not have the expertise to evaluate items. eBay cannot guarantee the findings of these evaluators -- authentication and grading are difficult, often subjective matters where the experts themselves occasionally disagree. Each of the companies listed on this page that provides authentication and/or grading services is an independent company, and eBay is not responsible in any way for any action, inaction, opinion or service in connection with these companies. You should review the credentials of each company and use your own judgment before using a company's services.