How to Grade Pokémon Cards Yourself

You don't need a lab to tell a 10 from an 8. Graders look at four things, in a set order, with a few simple tools. Here's how to grade a Pokémon card yourself at home, what each grade really asks for, and how to practice until your calls match the pros.

What you need

• A bright, single light: a desk lamp you can move. Surface damage only shows when light rakes across it at a low angle.
• A loupe or magnifier: 10x is plenty. Corners and edges are judged up close.
• A centering ruler, or a phone photo you can measure.
• A soft microfiber cloth: wipe off dust first so you don't mistake lint for a print flaw.

Step 1: Centering

Measure the border on the left and the right, then the top and the bottom, and turn each pair into a ratio. A card with 2 mm on one side and 3 mm on the other is 40/60.

Step 2: Corners

Look at each corner under magnification, front and back. A gem corner is sharp and square. Tiny white dots are the first sign of wear, then fraying, then a corner that has gone soft and rounded. Check the back too: whitening shows up most against the blue border.

Step 3: Edges

Run your eye along all four edges on both sides. You're looking for whitening, small chips and rough cuts from the factory. Dark and holo cards show edge wear the most.

Step 4: Surface

Hold the lamp low and sweep it slowly across the card. Scratches, scuffs, print lines, dents and light bends flash when the light catches them at the right angle, and disappear again when it moves. A clean surface stays quiet whichever way the light comes from. Do the back as well.

Step 5: The weakest area sets the grade

A card is only as good as its weakest area. Perfect centering and a clean surface still make an 8 if one corner is soft. Grade each area on its own, then take the lowest. When you're torn between two grades, the lower one is usually right: graders are strict, and overgrading your own cards is the most common mistake.

Factory errors are different

Ink blots, ghost (double) prints, miscuts, holo bleed and crimps come from the printing press, not from handling. They aren't wear, and collectors often pay more for a genuine error card. Learn to tell a factory error from damage before you decide a card isn't worth sending.

Is it worth grading?

Only grade a card if it could realistically land high and the graded price beats the fee plus shipping. A modern card that grades a 9 often sells for little more than raw. Our guide to how grading works and what it adds to value covers the numbers.

Practice on a free grading game

The fastest way to train your eye is to grade a lot of cards and see the answer every time. Holobrook's grading game gives you three real Pokémon cards a day, with hidden flaws to find using a ruler, a magnifier and a lamp. You make your call, then see the true grade and every flaw circled.