Pokémon TCG · Undone Seal · Japanese · #31

Sealeo #31 (Japanese) price

Name: Sealeo #31 (Japanese, Undone Seal)
Brand: Pokémon
SKU: JP-UNDONE-SEAL-31
Price: 4.32 EUR

Undone Seal31

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Market prices

–TCGplayer · Near Mint

€4.32Cardmarket price trend · Near Mint

–7-day change

#51 of 83Value rank in the set

Price history chartSee it in Sparkl Undone Seal master set · 83 cardsOpen in Sparkl Graded prices · PSA, CGC, BGSIn Sparkl Pro

Sealeo (#31, Rare) is a card from the Japanese Pokémon set Undone Seal. Near Mint, it has a market price of about €4.32 on Cardmarket (updated October 31, 2026). Among the 18 Rare cards of Undone Seal, it is the 14th most valuable.

Sealeo #31 prices by finish

Finish	TCGplayer	Cardmarket
Normal	–	€4.32

Near Mint prices: Cardmarket price trend, updated October 31, 2026.

Price charts, graded prices from PSA, CGC, BGS, SGC, TAG and ACE, PSA population counts and recent sold listings are in Sparkl Pro.

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<p style="font:12px/1.4 system-ui,sans-serif;margin:4px 0 0">Prices: <a href="https://sparkl.gg/pokemon/japanese/undone-seal/sealeo-31/">Sealeo on Sparkl</a></p>

About this card

Set: Undone Seal (Japanese)
Number: 31
Rarity: Rare
Finishes: Normal
Rank in its rarity: 14th of 18 Rare cards
Against its rarity’s median: 0.8× the median ($5.86)
Released: January 16, 2004
Print language: Japanese

How this page is made: Near Mint prices from TCGplayer and Cardmarket, refreshed daily; ranks, medians and comparisons are computed by Sparkl from those prices.

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The Undone Seal master set, card by card, with every price
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