How to psa grade a card

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Last updated: April 4, 2026

Quick Answer: PSA grading a card involves assessing its condition based on factors like centering, corners, edges, and surface. A professional grader at PSA (Professional Sports Authenticator) assigns a numerical grade from 1 to 10, with 10 being the highest. This grade, along with authentication and encapsulation, determines the card's market value.

Key Facts

What is PSA Grading?

PSA grading refers to the process undertaken by Professional Sports Authenticator (PSA), a leading third-party authentication and grading company, to assess the condition of trading cards. This process is crucial for collectors as it objectively determines a card's quality, which significantly impacts its market value. PSA assigns a numerical grade from 1 to 10, based on a rigorous examination of several key characteristics of the card. These grades provide a standardized benchmark for buyers and sellers in the collectibles market, ensuring transparency and consistency.

How Does PSA Grade a Card?

The PSA grading process is meticulous and involves trained experts who examine each card under magnification. They evaluate the following four primary areas:

The PSA Grading Scale

PSA uses a 1-10 grading scale, with specific qualifiers:

PSA also uses qualifiers like 'OC' (Off-Center), 'ST' (Stain), 'PD' (Print Defect), 'MK' (Miscut), and 'AU' (Autograph) to further describe specific issues a card might have, even within a numerical grade.

The Grading Process Steps

  1. Submission: Collectors send their cards to PSA, either through a membership account or by using a third-party dealer. Various submission tiers exist, often based on the declared value of the cards.
  2. Authentication: PSA experts first verify the authenticity of the card to ensure it is not counterfeit or altered.
  3. Grading: The card then undergoes the detailed examination described above by multiple graders to ensure accuracy and consistency.
  4. Encapsulation: Once graded, the card is sealed in a tamper-evident, sonically sealed plastic holder, often called a "slab." This holder protects the card and displays its grade and unique certification number.
  5. Return: The graded and encapsulated card is returned to the submitter.

Why is PSA Grading Important?

PSA grading provides several key benefits for card collectors:

While the process is thorough, it's important to note that grading is not always perfectly objective, and opinions can vary slightly between graders. However, PSA is widely considered the industry standard due to its consistency and the trust it has built over decades.

Sources

  1. Trading card game - WikipediaCC-BY-SA-4.0
  2. PSA Card Grading Standardsfair-use

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