Card Prices
One Piece card price guide: NM, PSA 10 and sold prices
Research and data: OP Box Index · Published · Data sources & methodology
One Piece card prices only make sense when the card version, condition and market source match. A raw Japanese NM card, an English card and a PSA 10 slab are different products with different buyer pools. This guide explains which number to use before treating a chase card as support for a sealed booster box.
Start with the exact card version
Set code and card number are not enough. One Piece has manga rares, red manga variants, SP cards, parallel cards, signature cards and reprint versions that can share names or numbers. A price from a regular parallel should never be used for a manga rare. When the listing title does not clearly identify the variant, treat the price as unverified instead of filling a gap with a guess.
Raw NM is a condition reference, not a completed sale
For Japanese raw cards, NM shop references show the asking level for a clean ungraded copy. They are useful for comparing the top chase cards inside one set, especially when a card has not traded often on eBay. But a shop price is not the same as a completed sale, and it can move more slowly than a fast-changing marketplace.
Use eBay sold prices for PSA 10 market value
For graded cards, completed eBay sales are the strongest public reference because they show what a buyer actually paid. OP Box Index only treats a PSA 10 range as a representative market signal when there are at least three verified completed sales. A live listing can help a collector find a copy to buy, but it is still an asking price until it sells.
Check sample size and timing
A single high auction can be an outlier. A small sample may also include a different language, a bundle or an incorrectly described card. Compare the median with the low and high range, confirm that all samples are the same Japanese variant, and note the date. If those checks fail, a blank value is more honest than a precise-looking number.
Do not add raw and graded values together
Raw NM and PSA 10 prices are alternative views of the same card, not two independent assets. Use raw NM to understand the present pull value and PSA 10 sold prices to understand premium collector demand. The relationship between them is informative, but a sealed box is not worth the sum of every possible grade outcome.
Use card prices to research a booster box
A strong box usually has more than one desirable card, reliable completed-sale demand and a price that is reasonable against recent sealed-box sales. A box supported by one expensive card can be fragile if that card has thin volume. Use the booster box comparison for set-level signals, then open a set guide to inspect the Top 10 cards and PSA context.
For the current verified PSA 10 market leaders, see the One Piece PSA 10 sold-price ranking. For live active listings and set detail, open the OP Box Index tracker.