Card grading has exploded in popularity over the last few years, and for good reason. What was once a niche part of the hobby has become a major part of the modern collecting landscape.
Whether you're chasing long-term value or preserving a personal favorite, grading plays a major role in today’s collectible market.
Here's a short beginner guide on how grading works.
This guide provides a basic overview of card grading. For more advanced tips and techniques, we recommend exploring additional resources and seeking advice from experienced collectors.
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Grading is the practice of submitting a card to a professional grading company, which then authenticates and evaluates it for centering, corners, edges, and surfaces using a 10-point scale.
The card is examined for centering, corners, edges, and surface quality before being sealed in a plastic holder, commonly called a slab. That grade becomes a permanent part of the card’s identity.
If you’ve read our Pokémon TCG collecting guide, this is the next step in the collecting process: the moment you decide a card might be worth preserving for the long term.
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Grading serves three main purposes:
It verifies authenticity
It protects the card inside a sealed slab
It establishes a recognized condition standard
For buyers and sellers, this removes much of the guesswork. A PSA 10, PSA being Professional Sports Authenticator (PSA), represents a “Gem Mint” condition.
“Gem Mint” typically means the card shows virtually no visible flaws under normal inspection. That consistency matters, especially in a global hobby like Pokémon TCG collecting.
It also has a serious impact on value. The gap between a raw copy and a Gem Mint example can be hundreds or even thousands of dollars depending on the card.
And even the jump from a PSA 9 to a PSA 10 can be staggering, simply because it represents a much smaller pool of near-perfect copies in existence.
That said, not everyone grades for resale. Many collectors submit:
First major pulls
Childhood favorites
Personal “grails” they never plan to sell
Grading isn’t just about profit; it’s also about preservation.
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Three major grading companies often receive trading cards for authentication and grading services.
As the most widely used service for Pokémon cards, PSA slabs are the easiest to sell, the most recognized globally, and the default choice for many collectors.
Popular for modern submissions, with optional subgrades and competitive pricing. CGC’s labels and slabs have become more accepted in the Pokémon market in recent years.
BGS is known for detailed subgrades and the coveted Black Label 10, one of the hardest grades to achieve. While not as popular as PSA or CGC, a BGS Black Label 10 can sometimes be worth the chase.
Companies like Ace Grading (ACE), Sportscard Guaranty Corporation (SGC), and Technical Authentication Grading (TAG) offer alternatives with faster turnaround times, AI-assisted grading, or distinctive slab designs.
While they currently carry less resale weight in the Pokémon market, they’re part of a growing ecosystem that gives collectors more choices to certify if their cards are in mint condition.
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Grading works best for:
High-value chase cards
Trophy or limited promo cards
Vintage cards in strong condition
Cards with long-term demand
It usually doesn’t make sense for:
Modern bulk
Heavily played copies
Personal binder cards you don’t plan to sell
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Graders consider centering, corners, edges and surfaces in assessing the condition of a card.
When graders assess a card's condition, they focus on four specific areas that determine the final grade. Every major company evaluates similar criteria:
Centering: How evenly the image sits within the borders.
Corners: Any whitening, dings, or soft edges.
Edges: Chipping and the quality of the factory cut.
Surface: Scratches, print lines, dents, or silvering.
These are the exact details graders look for, so inspecting your card across all four areas before submitting can help you set realistic expectations on your final grade.
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Knowing how to prepare and ship cards for grading is just as important as choosing the right card to submit.
Poor handling before submission is one of the most common reasons cards come back lower than expected, so building good habits early makes a real difference.
If a card is a grading candidate, protection starts the moment you pull it:
Sleeve it immediately to protect the surface from fingerprints and dust.
Avoid unnecessary handling since even clean hands can leave oils or cause micro-scratches.
Check the surface under strong light to spot any existing flaws before you commit to submitting.
Store it in a stable, low-humidity environment to prevent warping or moisture damage over time.
For shipping, most grading companies recommend putting it in a penny sleeve, then a semi-rigid holder (also known as a card saver), and then optionally a team bag.
A semi-rigid holder is a flexible plastic card holder that allows graders to safely remove the card. A team bag is a resealable protective sleeve that keeps the holder secure.
Toploaders are generally avoided because they can make removal more difficult and increase the risk of edge damage.
It’s also equally important to care for your graded slabs to preserve them.
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Once a card is graded, the goal shifts from preparing for a score to preserving it.
Store slabs:
Upright
In a cool, dry environment
Away from direct sunlight
For display, many collectors add guards to protect the edges, reduce impact wear, and match their slabs to make them look more visually appealing.
For larger collections, dedicated slab storage cases or vaults keep everything uniform and easy to organize.
Protecting your slabbed Pokemon TCG cards can be fun and decorative.
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Even experienced collectors make mistakes when they first start grading. Before you submit your next card, watch out for these common (and costly) habits:
Submission fees, shipping, and turnaround times add up quickly, so sending low-value or borderline-condition cards often results in a graded copy worth less than the total cost.
Centering is one of the few factors you can evaluate in seconds, and one of the hardest for a card to overcome. A card with obvious left-to-right or top-to-bottom imbalance is unlikely to reach a Gem Mint grade, even if everything else looks clean.
Under direct light, surface scratches, print lines, edge wear, and small dents become much more visible. Pre-grading your own cards realistically saves both money and disappointment.
A quick pop report search tells you how many high-grade copies already exist. If PSA 10s are plentiful and selling close to raw prices, the grading margin may not be there. On the other hand, a low-pop card in strong condition might be worth the submission.
Most grading damage happens during shipping, not grading. Cards should be packaged properly and then secured to prevent movement.
Avoiding these mistakes alone saves time, submission fees, and unnecessary regrades, and it helps you approach grading with a strategy instead of a guess.
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Not every card needs to be graded, and not every collection needs slabs. But for cards with real value, grading creates authentication, protection, and a clear place in the wider market.
The earlier the protection habit starts, the better the grading results tend to be. Because in the end, grading isn’t just about the number on the label; it’s about keeping your options open as your collection grows.
Collecting is easier than you think. This guide covers the simple habits that protect your pulls from day one. If you want your collection to stay sharp years from now, start here.
