Cloyster

FireRed & LeafGreen · #20/112 · Rare · 2004

$35.68

Reverse Holofoil · Market price ▲ 3.2% (30d)

Prices as of Jul 26, 2026

Normal Reverse Holofoil

HP 70WaterStage 1Art · Aya Kusube

320graded pop

26%gem rate

2.5×PSA 10 vs raw

-69%off ATH $9.13 · Jun 2022

−$19.35EV to grade — don't

Printings & price history

Reverse Holofoil▲ 0.0% 7d$35.68

Low $30.00Mid $47.52

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Graded values

updated 2026-07-26

Grade 6 est.$28.64

Grade 5 est.$24.12

Grade 4 est.$19.90

Grade 3 est.$16.58

Grade 2 est.$13.57

Grade 1 est.$11.46

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

Reverse Holofoil · PSA 10 price history$656.28

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Graded population census · updated 2026-07-07

Reverse Holofoil

PSA152 graded · 27 gem 10

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CGC78 graded · 21 gem 10

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Population data from PriceCharting, updated monthly.

Abilities

Exoskeleton

Any damage done to Cloyster by attacks is reduced by 20 (after applying Weakness and Resistance).

Attacks

10×Double Bubble

Flip 2 coins. This attack does 10 damage times the number of heads. If either of the coins is heads, the Defending Pokémon is now Paralyzed.

50Shell Attack

How much is Cloyster #20/112 worth?

A raw copy of Cloyster #20/112 (FireRed & LeafGreen, 2004) is worth about $2.33 right now, based on the latest market data from July 27, 2026. Across the 2 printings we track, copies run anywhere from $1.85 to $323.10 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $90.00, roughly 38.6x the raw price, while a PSA 9 sits near $24.00. 152 copies have been graded to date, and 18% of them came back a 10 — worth knowing before you pay grading fees.

These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.