Card Prices

PSA 10 vs raw (NM) One Piece card prices

Research and data: OP Box Index · Published July 6, 2026 · Updated August 10, 2026 · Data sources & methodology

Raw NM and PSA 10 prices answer different questions. A raw NM price is a reference for an ungraded card in clean condition. A PSA 10 price is a graded-market price that includes condition certainty, slab demand, population pressure and buyer trust.

Raw NM prices move first

Raw cards usually react quickly to set hype, new reveals and character demand. For newer One Piece sets, NM prices can be the earliest signal that a chase card is becoming important to the sealed box market.

PSA 10 prices show premium demand

PSA 10 prices matter when collectors are willing to pay more for a verified gem-mint copy. A high PSA 10 price can support a box if the card is difficult to grade or if the graded population is low compared with demand.

Population data changes the interpretation

A card can have a high raw price but a weak PSA 10 premium if many gem-mint copies exist. The opposite can also happen: a card with moderate raw demand can command a strong PSA 10 price if the gem rate is low or the character is heavily collected.

Why OP Box Index shows both

Sealed box buyers need both views. NM prices help explain what a buyer could pull today. PSA 10 prices help explain what the market pays for the best copies. Together, they give a cleaner read on chase-card strength than either number alone.

Use caution with thin samples

Some One Piece PSA 10 cards have few completed sales. In those cases, OP Box Index hides uncertain matches or labels eBay active listings separately. Active PSA 10 listings are useful purchase references, but they are not the same as completed sales.

What our data actually shows: the PSA 10 multiple

We measured this instead of guessing. Across our tracked Japanese chase cards we compared the raw NM price (Yuyu-tei, variant-matched) against the PSA 10 price from completed eBay sales, keeping only cards with at least 5 completed PSA 10 sales. That leaves 46 cards with a clean pairing on both sides.

The result is less dramatic than most buyers expect. The median PSA 10 multiple is 1.49× the raw NM price — not the 5× or 10× that gets quoted around grading. The middle half of cards sits between 0.98× and 2.59×. Only 35% of cards reach a 2× multiple or better, and 26% trade below 1×, meaning the graded copy sells for less than the raw card once you account for the variant. That last group is the important one: grading those cards destroys value before you even pay the fee.

Notice the pattern in those five rows: the cards that are already expensive raw (the manga alternate arts above ₩1M) carry the smallest multiples, around 1.1–1.4×. The best multiple in the group is the OP01-016 Nami Parallel at 2.3×, a mid-priced card. That is the practical rule this data supports — grading pays best in the middle of the price range, not at the top, because grail-tier raw cards are already priced as if they will grade well.

Two cautions on reading these numbers. First, variant matching decides everything: OP01-016 appears three times above (Manga, Parallel, SP) at three completely different price levels, so a "PSA 10 Nami" price is meaningless until you know which printing it is. Second, gem rate describes only the cards submitted in the recorded sample. A higher rate means a larger share of those submissions received PSA 10, but card selection, character demand and completed-sale depth still affect the premium. That is why we publish population and gem rate beside the price rather than treating either as a forecast.

For live set data, open the OP Box Index tracker and switch between the Top 10 card view and PSA statistics.