Profession Card Graders

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Posted By: ErikV

Since the card collecting hobby has not only adopted and accepted the idea of graded cards, it has also become big business. With many graded cards selling for high dollars at auctions, I'm curious to know what the credentials are for the individual card graders that are employed by the "big three" card grading companies? Is there a mentoring period when they first get employeed? Is their a certain number of cards they must grade before they are recognized as an expert? What sort of training or schooling do they attend? Are they tested on a regular basis and recertified? I understand the fact that PSA, SGC and GAI stand by their graders' opinions, but I'm just wondering what makes the individual card graders word hold as much weight as it does?