Site Policies

  • Stay in the know. Please click here for updates
  • Before you ask, please click here to read the FAQ.

  • Opinions, Authentication & Grading - Overview

    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, has links to companies that provide this specialized service.


    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.


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


    Determine the physical condition of an item.

    For more information about Authentication & Grading, take a look at our FAQ .

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


    Get your coins graded with NGC

    Use PCGS to grade your coins


    Use CGC to have your comics restored and graded


    PSE will authenticate and grade your stamps

    Trading Cards

    Grade your trading cards with PSA

    SGC can authenticate your trading cards

    Sports Autographs & Memorabilia

    Authenticate your autograph with PSA/DNA

    Authenticate sports autographs and memorabilia with

    NOTE: The opinions expressed by these evaluators are theirs alone. does not examine items listed on its site and does not have the expertise to evaluate items. 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 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.

    < Back