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Pokémon sets › Mysterious Treasures › Unown I

Unown I 37/123 Mysterious Treasures Rare Pokémon card

Illus. Daisuke Ito · © Pokémon / Nintendo / Creatures / GAME FREAK. Shown for identification.

Unown I 37/123

Mysterious Treasures · Rare · illustrated by Daisuke Ito

$10.38TCGplayer market price, 2026-10-15
#35 of 124most valuable in Mysterious Treasures

TCGplayer eBay Graded on eBay

What Unown I 37 is worth

Unown I 37/123 sells for about $10.38 ungraded in near-mint condition. It is the 35th most valuable card in Mysterious Treasures, and a small part of the set's total value. The typical (median) Rare in this set goes for $4.41, so this card sells at 2.4 times that. Among all 94 Unown cards, it ranks 51st by price.

Unown I price by printing

PrintingPriceSource
Normal$2.60TCGplayer market, 2026-10-15
Reverse Holo$10.38TCGplayer market, 2026-10-15

Unown I card details

SetMysterious Treasures (Diamond & Pearl, MT)
Number37/123
RarityRare
Card typeBasic Psychic
HP50
AbilitiesITEM (Poke-POWER)
AttacksHidden Power Colorless
WeaknessPsychic +10
Retreat cost1
IllustratorDaisuke Ito
ReleasedAugust 1, 2007
PrintingsNormal, Reverse Holo

How to tell you have this card

Look at the bottom of the card: it should read 37/123 next to the set code MT, and the rarity is Rare. The illustrator credit reads Daisuke Ito. Not sure which set your card is from? Compare the symbol with our set symbol guide.

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Prices in US dollars: TCGplayer market prices (via pokemontcg.io) where recent, otherwise the Cardmarket trend (via TCGdex) converted at the day's ECB rate. Ungraded, near-mint. Prices change daily; check the live listing before you buy or sell.