Card Grading: How It Works, What to Know, and When It's Worth It

Estimated reading time: 15 min

Key Takeaways

• Card grading evaluates centering, corners, edges, and surface to assign a condition grade that can impact value, with each factor considered in the grading scale.
• PSA, BGS, CGC, and TAG differ in grading scales, fees, turnaround times, and card type specializations, influencing collectors' choice based on card type and goals.
• Not every card is worth grading; use tools like Midpoint's AI grading app to estimate grades and potential ROI before submitting cards to help avoid unnecessary costs.
• Grading costs range from approximately $15 to $75+ per card depending on service tier, declared value, and turnaround speed, with additional fees for shipping and membership.
• Graded cards often fetch higher resale prices but typically only if they meet strict condition and rarity criteria; understanding population reports and market demand is important.

Table of Contents

• Section 1: Understanding How Card Grading Works
• Section 2: The Four Grading Criteria Explained
• Section 3: PSA vs BGS vs CGC – Which Grading Company to Choose?
• Section 4: Deciding If Your Cards Are Worth Grading
• Section 5: Grading Costs, Turnaround Times, and Submission Process
• Section 6: Impact of Grading on Card Value and Market Demand

Conclusion

FAQ

Section 1: Understanding How Card Grading Works

What Is Card Grading?

Card grading is a professional evaluation process where third-party companies assess the condition of a trading card and assign a grade that reflects its quality and preservation. This grade can influence a card's market value and desirability among collectors and investors. The grading essentially standardizes the card’s condition, allowing buyers and sellers to transact with greater confidence about the card's state.

Historically, grading evolved as a response to inconsistent pricing and seller descriptions in the collectibles market. Today, a graded card is generally seen as more trustworthy and liquid, especially in higher-value transactions.

The Grading Process Overview

When you submit a card to a grading company like PSA, BGS, CGC, or TAG, experts examine it under magnification and controlled lighting. They evaluate four main criteria—centering, corners, edges, and surface—to determine the overall condition. After inspection, the card is encapsulated in a tamper-evident plastic holder with a label indicating its grade, serial number, and sometimes population data.

Each grading company has trained graders who use proprietary standards and technology. For example, PSA graders use microscopes with lighting to detect surface flaws that may not be visible to the naked eye. The card’s centering is measured precisely, often with digital tools, to ensure objective scoring. Once graded, the card is sealed in a hard plastic slab that protects it from physical damage and environmental factors.

Why Grading Matters

Graded cards provide collectors with greater confidence about a card’s authenticity and condition, which can boost liquidity and resale value. Grading also helps protect cards from physical damage and fraud. For instance, a card graded PSA 10 (Gem Mint) is widely accepted as a near-perfect example, often allowing it to command premium prices at auctions and marketplaces.

For investors, grading can reduce risk. A raw card may have unseen defects that lower its value, but a professionally graded card has been verified. Additionally, grading companies maintain population reports indicating how many similar cards have been graded at each grade level, which can help determine scarcity and market demand.

Understanding how grading works helps collectors decide whether to invest in professional grading services and which cards to prioritize for submission.

Section 2: The Four Grading Criteria Explained

Centering

Centering measures how well the card’s image is aligned within its borders. Perfect centering means the image is evenly spaced from all edges. Off-centered cards lose points even if other areas are perfect. Many companies use millimeter measurements or percentages to define acceptable centering for top grades.

For example, PSA requires at least 55/45 centering on the front for a Gem Mint 10 grade and a more forgiving 75/25 on the back. This means the image cannot be off-center by more than 5% on the front. BGS uses a similar standard but reports centering as a subgrade, which can influence the overall grade.

Midpoint’s precise centering measurement tool lets collectors measure centering down to the millimeter before submitting, potentially saving grading fees on off-centered cards. For instance, if your card is off-center by 3mm on a 63mm-wide card, it might only qualify for a PSA 8 or 9, which may not justify grading fees.

Corners

Corners are examined for sharpness and wear. Rounded, bent, or frayed corners reduce a card’s grade significantly. Even minor whitening or chipping can impact scores at the highest grade levels like PSA 10 or BGS 9.5+.

Collectors should note that some cards are more prone to corner damage due to their age or manufacturing process. For example, older cards from the 1950s often have softer cardboard that can easily dent. Modern cards with thicker stock tend to hold corners better but can still suffer damage from poor handling.

High-grade cards generally have sharp corners with minimal visible whitening. Even slight corner wear can drop a card from Gem Mint to Mint or Near Mint status.

Edges

Edges are checked for nicks, dents, or whitening. Clean edges without any damage are important for top grades. Edge defects can be caused by handling, storage, or manufacturing flaws.

Edges are especially vulnerable if a card has been stored loosely in stacks or in poor-quality sleeves. Collectors aiming for high grades often use penny sleeves and top loaders before submission to protect edges.

Manufacturing defects such as chipping from die-cutting can also affect edges. Some rookie cards from certain sets have known edge issues, which grading companies take into account.

Surface

Surface condition covers scratches, print defects, stains, or gloss loss. Surface flaws often lower grades the most because they affect a card’s visual appeal. Surface assessment includes both front and back of the card.

For example, foil or holographic cards are more prone to surface scratches and gloss loss, which can be difficult to detect without specialized lighting. Collectors should handle such cards with gloves and avoid contact with abrasive surfaces.

Print defects such as misprints, ink smears, or discoloration can also impact surface grading, though some defects may be accepted if they occurred during manufacturing. Stains, dirt, and fingerprints are serious detractors and often result in grade reductions.

• Summary: Each criterion contributes to the final grade, and a flaw in one can prevent a card from achieving a perfect score.
• Pro Tip: Use a card grading app like Midpoint to analyze each area digitally, estimating your card’s likely grade before paying for professional grading. This proactive step can help save grading fees on cards unlikely to earn top grades.

Section 3: PSA vs BGS vs CGC – Which Grading Company to Choose?

Overview of Major Grading Companies

The three most prominent grading companies are PSA (Professional Sports Authenticator), BGS (Beckett Grading Services), and CGC (Certified Guaranty Company). TAG Grading and SGC also serve niche markets but are less common.

Each company has its own strengths, pricing models, and specialty areas, so the best choice depends on your card type, budget, and desired turnaround time.

PSA: The Industry Leader

• Widely recognized and trusted, PSA sets market pricing benchmarks and has the largest graded card population.
• Uses a 1-10 scale; a PSA 10 is Gem Mint, PSA 9 is Mint, and so forth.
• Strict centering and condition standards; Gem Mint 10 requires near-perfect centering and flawless condition with minimal tolerance for defects.
• Turnaround times vary from 15 days to several months depending on service level, with premium services speeding processing.
• Popular for sports cards, Pokémon, and Magic: The Gathering, PSA's graded cards often command the highest premiums.

BGS: Subgrades and Label Options

• Uses a 1-10 scale and provides subgrades for centering, corners, edges, and surface, allowing detailed insight into a card’s condition.
• Known for detailed grading transparency, BGS’s subgrades can help collectors understand specific strengths or weaknesses of a card.
• Offers distinctive Black Label (autographed), Gold Label (standard), and Platinum Label (premium) slabs with different prestige and display appeal.
• Faster turnaround times are available for higher-tier submissions, making it attractive for urgent grading needs.
• BGS is especially popular among basketball and football card collectors and is gaining traction in Pokémon TCG.

CGC: Expanding into Trading Cards

• Initially a comic grading company, CGC has expanded into sports and TCG cards, bringing comic grading expertise to cards.
• Uses a 1-10 scale and transparent labels with a focus on clarity and simplicity.
• Generally competitive pricing and turnaround times, often undercutting PSA for similar services.
• Known for customer service and detailed population reports.
• CGC is becoming a popular choice for Pokémon and Magic: The Gathering due to its competitive pricing and reputation.

Comparing Costs and Turnaround

PSA grading costs range from roughly $20 to $75 or more per card, depending on declared value and turnaround speed. Their fastest services can cost $100+ for individual cards but offer 5-10 day turnaround.

BGS and CGC offer similar pricing structures but vary by service level. For instance, BGS’s premium Gold Label services can cost $30-$50 per card with 10-20 day turnaround, while CGC offers standard grading for around $20-$40 with comparable speed.

Additional fees such as membership or bulk submission discounts can impact total costs. It's important to check each company’s current pricing and promotions before submitting.

This guide provides an in-depth comparison of grading scales, fees, and service nuances to help collectors make informed decisions.

Section 4: Deciding If Your Cards Are Worth Grading

Factors to Consider Before Grading

• Card Rarity: Extremely rare cards or limited print runs often justify grading because their scarcity can amplify graded value. For example, a 1-of-1 autographed card or a short print rookie card from a major set may benefit from grading.
• Condition: Only cards in near-mint or better condition typically receive high grades and meaningful value increases. Cards with visible damage rarely recoup grading costs.
• Market Value: Compare the raw market price to potential graded value. Higher-value cards (e.g., $100+) often justify grading due to potential price increases.
• Demand and Popularity: Popular sports stars or Pokémon cards with high demand tend to yield better returns. For example, a LeBron James rookie card or a Charizard first edition is more likely to make grading profitable.
• Edition and Set: Cards from iconic sets (e.g., 1986 Fleer Basketball, 1999 Pokémon Base Set) typically have higher potential value when graded.

Common Mistakes Collectors Make

Many submit cards without assessing centering or surface defects, leading to lower-than-expected grades. Off-center cards or those with visible damage often do not increase much in value, resulting in wasted grading fees.

Another mistake is submitting low-value cards en masse without considering individual worth, which can rack up high grading fees with minimal return. Collectors should prioritize their best candidates and possibly batch lower-value cards for economy submissions or avoid grading altogether.

Using AI Card Grading Tools

Midpoint’s card grading app uses AI to estimate PSA, BGS, CGC, and TAG grades by analyzing centering, corners, edges, and surface defects. This lets collectors preview the likely grade and decide if grading is worth the investment.

By digitally measuring centering down to millimeters and assessing condition, Midpoint helps avoid costly surprises and optimize submission choices. For example, if the app estimates a PSA 7 or 8 grade due to slight corner wear, collectors may choose to hold onto the card or attempt restoration before grading.

AI tools also analyze population data and recent sales to provide estimated post-grading market values, enabling a more data-driven decision process.

Section 5: Grading Costs, Turnaround Times, and Submission Process

Understanding Grading Fees

• PSA fees start around $20-$30 per card for standard turnaround, rising to $75+ for expedited services and high-value cards. For example, a card with declared value over $500 costs more to grade.
• BGS and CGC have comparable pricing with premium tiers for faster grading and higher declared values. BGS’s Black Label autographed cards incur additional fees.
• Additional costs include shipping, insurance (recommended for high-value cards), and membership fees, which may be annual or per-submission.
• Bulk submissions can reduce per-card costs, but turnaround times may increase due to volume.

Typical Turnaround Times

• Standard PSA grading can take 30+ days but may extend during peak demand periods (e.g., post-holiday seasons or market booms).
• BGS offers tiered turnaround from 10 days (premium) to several weeks depending on service level selected.
• CGC turnaround times are similar to PSA but can vary based on submission volume and service level.
• Planning your grading submissions around expected turnaround helps avoid surprises and allows better timing for sales or auctions.

How to Submit Cards to PSA

1. Register for a PSA account and membership, which may include paying an annual fee for access to submission services.
2. Select your service level based on declared card value and desired speed—services range from Value to Premium and Express.
3. Package cards carefully using penny sleeves, semi-rigid top loaders, and bubble wrap to avoid damage during shipping.
4. Complete submission form with detailed card information, including set name, year, card number, and declared value.
5. Ship to PSA’s grading center with tracked and insured mail; keep all shipping receipts and tracking numbers.
6. Monitor your grading status online through PSA’s portal until the card is graded and shipped back.

Check PSA’s official website for the latest submission guidelines, pricing, and restricted items.

Section 6: Impact of Grading on Card Value and Market Demand

Raw Value vs Graded Value

Graded cards can sell for multiples of raw card values, particularly at high grades. For example, a PSA 10 (Gem Mint) can command several times more than an ungraded card in similar condition. Some iconic cards may reach even higher premiums.

However, the difference between PSA 9 and PSA 10 can be significant. PSA 10 cards are rarer due to strict standards, and collectors often pay a premium. For example, a PSA 10 1986 Fleer Michael Jordan rookie card can sell for substantially more than a PSA 9.

See our detailed value comparison in PSA 9 vs PSA 10 Value Comparison for insights into how small grade differences translate to price gaps.

Population Reports and Rarity

Population reports published by grading companies show how many cards have received each grade. Fewer cards graded Gem Mint increase scarcity and value. For example, if only 100 PSA 10 copies of a card exist versus 10,000 PSA 9 copies, the 10s are generally more valuable.

Rarer cards with fewer submissions can see larger value increases with high grades. Conversely, cards with large populations graded at high levels may see less dramatic premiums.

Common Defects That Lower Grades

• Off-centering is a common cause of grade reduction, often lowering cards by one or two grades.
• Surface scratches, stains, or print defects visibly degrade a card’s appeal and can drop grades significantly.
• Corner wear and edge chipping are critical, especially for Gem Mint levels where near perfection is expected.
• Creases or bends often cause automatic failure for top grades, though minor bends may be accepted at lower grades.

Knowing these defects helps collectors choose which cards to grade and set realistic expectations about possible grades and values.

Sports Cards vs Pokémon and TCG Grading

While grading criteria are similar, Pokémon and TCG cards often have foil or holographic surfaces requiring specialized scrutiny. PSA and BGS have adapted grading standards to account for these nuances, which can affect grading results and pricing.

For instance, foil cards are prone to surface scratches and can exhibit print lines that are considered manufacturing defects. Graders distinguish between these to fairly grade the card without penalizing unavoidable production flaws.

Midpoint covers all major trading card games and sports, providing estimated grades and market values to aid your collecting strategy. This breadth allows collectors to manage diverse portfolios with greater confidence.

Conclusion

Card grading is an important step for serious collectors and investors to authenticate and potentially maximize the value of their trading cards. Understanding how grading works, the four grading criteria, and differences between PSA, BGS, and CGC can help you make informed decisions about which cards to grade.

Grading costs and turnaround times vary, so planning submissions carefully is essential. Using an AI-powered card grading app like Midpoint can help save money by previewing your card’s likely grade before paying for professional services. This helps avoid common pitfalls such as grading off-center or damaged cards.

Finally, knowing how graded cards impact resale prices and market demand can help you seek the best return on investment for your collection. By combining careful card selection, understanding grading nuances, and leveraging technology, collectors can enhance both their enjoyment and financial outcomes in the hobby.

FAQ

Q: How do card grading companies assign a grade?

A: Grading companies evaluate four key criteria—centering, corners, edges, and surface—using magnification and lighting to assess condition and assign a grade on a 1-10 scale, with 10 being Gem Mint. Each criterion is considered, and defects in any area can reduce the overall grade.

Q: What cards are worth grading?

A: Cards worth grading are typically rare, in near-mint or better condition, and have strong market demand. Using tools like Midpoint’s AI grading app can help determine if grading is financially worthwhile by estimating probable grades and potential market value.

Q: Is PSA grading better than BGS or CGC?

A: PSA is the most recognized grading company with strict standards and the largest market presence, but BGS offers detailed subgrades and faster turnaround options, while CGC provides competitive pricing and good service. The best choice depends on your card type, goals, and priorities.

Q: How much does PSA grading cost?

A: PSA grading fees vary from about $20 to $75+ per card depending on service speed and declared card value. Additional costs include shipping and membership fees. Confirm current pricing on PSA’s website before submitting.

Q: What hurts a card grade the most?

A: Off-centering, surface scratches, corner wear, edge chipping, and creases are common defects that reduce grading scores. Even minor imperfections in these areas can prevent a card from achieving top grades like Gem Mint 10.

Q: How do I know if a card will get a 9 or 10?

A: Determining whether a card will grade 9 (Mint) or 10 (Gem Mint) depends heavily on near-perfect centering, flawless corners, edges, and surface. Tools like Midpoint’s AI grading app can estimate your card’s likely grade to help decide on submission, reducing financial risk.