begin grading by uploading your baseball card on Professional Sports Authenticator (PSA), Beckett Grading Services (BGS), or Sportscard Guaranty Corporation (SGC). Note that market value shifts ...

The most expensive baseball cards derive their value from a combination of factors ... Only a few copies exist in mint condition, with one graded PSA 9.5 achieving the record-breaking price of USD ...

Grading trading cards has never been hotter, but is it a smart choice? It depends on what cards you're grading. A series of ...

PSA, which authenticates and grades collectibles ... with various providers operating at different layers of the value exchange. Card manufacturers serve as the supply source for new products ...

Whether you’re looking to break into the rare or valuable baseball ... value] in recent years,” per the auction site. “This card is another uptick in recent months, with the average price of ...

A grade from PSA serves as a stamp of approval to buyers that the cards they are purchasing are legitimate and plays a major role in determining the values of cards. Cards in mint condition sell ...