Grading One Piece cards: PSA, BGS and CGC compared
Grading turns a card into a slabbed, authenticated, permanently-graded asset. It's also expensive and easy to lose money on.
The short version
- Grading assesses centring, corners, edges and surface, and returns a numeric grade on a 1–10 scale.
- PSA, BGS and CGC are the three graders collectors recognise; PSA has the deepest market for modern TCG cards.
- Grading only makes financial sense when the graded price minus the raw price comfortably exceeds the total cost of grading.
- The gap between a 9 and a 10 is often larger than the entire cost of grading, which is why the gamble matters.
- Cards worth grading are almost always high-value chase printings in near-perfect raw condition — not bulk.
Grading sends a card to a third party who authenticates it, assesses its condition on a numeric scale, and seals it in a tamper-evident case. For the right card it can multiply the value. For the wrong card it's an expensive way to make a card harder to play with.
What a grade actually measures
| Criterion | What the grader looks at |
|---|---|
| Centring | How evenly the borders are cut, front and back. The most common reason a card misses a 10 — and it's decided at the factory, not by you. |
| Corners | Sharpness. Even light whitening drops the grade. |
| Edges | Chipping, whitening and nicks along the perimeter. |
| **Surface | Scratches, print lines, indentations, foil clouding, fingerprints. |
PSA vs BGS vs CGC
| PSA | BGS | CGC | |
|---|---|---|---|
| Scale | 1–10, whole and half grades | 1–10 with subgrades for each criterion | 1–10, whole and half grades |
| Signature grade | PSA 10 Gem Mint | BGS 10 Black Label (all four subgrades 10) | CGC 10 Pristine |
| Market depth for modern TCG | Deepest — most buyers, most liquid | Strong, especially at the top end | Growing, generally cheaper to submit |
| Best for | Resale and liquidity | Collectors who want subgrade detail | Cost-conscious bulk submissions |
For most One Piece collectors selling into a Western market, PSA is the default because that's where the buyers are. A PSA 10 and a CGC 10 are not interchangeable in price, and the difference is liquidity rather than rigour.
Does grading pay?
The arithmetic is simple and unforgiving:
Expected graded value − raw value − (grading fee + shipping both ways + insurance) = your actual return.
The trap is the word *expected*. You are not guaranteed a 10. If a PSA 10 of your card sells for five times raw and a PSA 9 sells for barely above raw, then a 9 means you've paid the fee to make the card less playable and roughly as valuable. Price both outcomes before you submit, and be honest about which one your card is likely to get.
- Grade: high-value chase cards — Manga Rares, Secret Rares, sought-after alternate arts — that look flawless raw and are well centred.
- Don't grade: playable staples you might want in a deck, anything mid-value, anything with visible edge wear, and bulk of any kind.
- Think twice about: cards from a set still being opened heavily. Supply of graded copies rises fast in the first year and prices soften.
Preparing a card for submission
Before you send a card off
Inspect under strong light
Angle the card against a bright light to find surface scratches and print lines that are invisible head-on. This is where most surprise 9s come from.
Measure the centring
Compare the border widths on both axes, front and back. Visibly uneven borders cap your realistic grade.
Do not clean it
Wiping a card adds micro-scratches that a grader will see and you won't. There is no safe DIY cleaning.
Sleeve it properly
Penny sleeve, then a semi-rigid holder. Not a top-loader for submission — check the grader's current packing requirements.
Record it before it leaves
Photograph the card and note its raw value and your cost basis. Bounty's graded card records store the grading company, grade, certificate number and a manual value per copy, so the slab stays part of your collection valuation rather than falling out of it.
After it comes back
A graded card is a different asset from a raw one. It has its own price history, its own buyers and its own market. If you're tracking a collection seriously, record the certificate number and grade against that specific copy — averaging a slab into a raw-card valuation produces a number that's wrong in a direction you won't notice. Our guide on tracking collection value covers how to keep those separate.
Frequently asked questions
- Is it worth grading One Piece cards?
- Only for high-value cards in near-perfect raw condition. The gap between the graded and raw price has to comfortably exceed the grading fee, shipping and insurance — and you have to be realistic about getting a 9 rather than a 10.
- Which grading company is best for One Piece cards?
- PSA has the deepest and most liquid market for modern TCG cards, which usually makes it the best choice for resale. BGS offers subgrades that some collectors prefer, and CGC is typically cheaper to submit to.
- What is the difference between a PSA 9 and a PSA 10?
- A 10 is Gem Mint — essentially flawless centring, corners, edges and surface. A 9 is Mint with one minor imperfection. The price difference between the two is frequently larger than the entire cost of grading, which is what makes submitting a gamble.
- Can I play with a graded card?
- No. Once a card is slabbed it can't be shuffled into a deck without breaking the case, which destroys the grade. Grade cards you intend to keep or sell, not cards you want to play.
Sources
Stop guessing what your cards are worth
Bounty scans a card down to the exact variant and prices it against TCGPlayer, Cardmarket and Yuyu-tei. Free on iPhone, five scans a day.
