Trading Card Grading Explained

Direct answer: Card grading is third-party authentication and condition assessment by services such as PSA (Professional Sports Authenticator), BGS (Beckett Grading Services), and CGC. Graders examine centering, corners, edges, and surface condition, then assign a numerical grade that is sealed on the holder. Graded cards sell at premiums over raw (ungraded) copies because buyers trust the condition assessment without seeing the card. Grade directly affects market value, with PSA 10 (Gem Mint) commanding the highest premiums.

What Is Card Grading?

Card grading is the process by which a trained expert at a third-party company examines a trading card for authenticity and condition, then assigns a numerical grade. The card is sealed in a tamper-evident plastic holder (called a "slab") with the grade and card identification printed on the label. Graded cards have standardized, verifiable condition descriptions that enable buyers to purchase cards remotely with confidence.

The three major grading companies in the current market are PSA (Professional Sports Authenticator), BGS (Beckett Grading Services, owned by Beckett Media), and CGC (Comics Guaranty Company, which entered cards in 2020). SGC (Sportscard Guaranty) is an older alternative with a collector following for vintage baseball.

PSA Grading Scale

PSA grades on a 1-10 scale with half-point grades at lower levels:

Grade	Name	Description
PSA 10	Gem Mint	Perfect centering (60/40 or better), no surface wear, four sharp corners, clean edges
PSA 9	Mint	Very minor imperfection on one surface, near-perfect corners, strong centering
PSA 8	Near Mint-Mint	Slight surface wear, minor corner imperfection, good centering
PSA 7	Near Mint	Light wear visible on surfaces, light marks, minor corner blunting
PSA 6	Excellent-Mint	Moderate wear, some surface creases, corner blunting
PSA 5 and below	Excellent and lower	Progressive visible wear, damage, creases

BGS Grading

BGS uses subgrades: centering, corners, edges, and surface each receive a score from 1-10, and the final grade is derived from these subgrades (a card must have all subgrades at or near the final grade level). BGS 9.5 (Gem Mint) and BGS 10 (Pristine) are distinguished categories; a BGS 10 "Black Label" (all 10 subgrades) is extremely rare and commands a significant premium.

BGS subgrades provide more information than PSA grades, making them popular for modern cards where collectors want detail about which dimension limited the grade.

Should You Grade Your Card?

Grading is economically worthwhile when the expected premium at the likely grade exceeds the total cost (grading fee + shipping both ways + insurance). Consider:

Card value in raw condition: A raw card worth $10 will not recover a $25+ grading fee.
Expected grade: If the card has visible wear, it will grade below PSA 8, where premiums are modest. If it looks mint, PSA 9 or 10 is possible.
Grade premium for this specific card: Check the PSA price guide or recent comps to see what PSA 10 vs. PSA 9 vs. raw trades for on this card.
Wait time: PSA economy submissions have had turnaround times exceeding 12 months during peak demand periods. Factor holding cost into the decision.

How to Submit a Card for Grading

Create an account on the grading company's website.
Select the service level (economy, regular, express) based on card value and desired turnaround.
Package the card in a toploader and team bag, then follow the grader's specific submission instructions.
Ship via tracked, insured carrier (USPS Priority Mail with declared value is commonly used for cards under $1,000; higher values warrant additional insurance).
Track the submission through the grader's online portal.
Once graded, the slab is returned by mail or can be picked up at industry shows.

Frequently Asked Questions

Which grading company is best: PSA, BGS, or CGC?

PSA is the dominant grader for sports cards and commands the largest secondary market; PSA-graded cards are the most widely traded. BGS (Beckett) is preferred by some collectors of modern cards due to its subgrade system and is dominant for certain card types. CGC entered cards in 2020 and is growing particularly in Pokemon and TCG markets. For investment, PSA grades command the most liquid market for most sports card categories.

What is a "crossover" submission?

A crossover is when a collector submits a card graded by one company (e.g., BGS 9.5) to another grader (e.g., PSA) hoping it will receive the equivalent or higher grade in the new holder. Crossovers are done when collectors believe PSA's premium for the target grade justifies the additional grading fee. A BGS 9.5 submitted to PSA may receive PSA 10, PSA 9, or lower.

What is a "raw" card?

A "raw" card is an ungraded card not encased in a grading slab. Raw cards have no third-party authentication or condition verification. Buyers of raw cards assume condition risk. Some collectors prefer raw cards for active card collections or for cards not valuable enough to warrant grading fees.

References

Last reviewed: September 2026. Market data and platform information subject to change; verify current conditions before making investment decisions.