Cloyster

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

$34.82

Reverse Holofoil · Market price ▼ 2.4% (30d)

Prices as of Aug 14, 2026

Normal Reverse Holofoil

HP 70WaterStage 1Art · Aya Kusube

320graded pop

26%gem rate

2.7×PSA 10 vs raw

-72%off ATH $9.13 · Jun 2022

−$15.85EV to grade — don't

Market data

Printings & price history

Reverse Holofoil▲ 0.0% 7d$34.82

Low $36.56Mid $47.12

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Graded market

Graded values

PSA 10 report →updated 2026-08-14

Grade 6 est.$33.71

Grade 5 est.$28.38

Grade 4 est.$23.42

Grade 3 est.$19.51

Grade 2 est.$15.97

Grade 1 est.$13.48

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$1,576.69

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 $2.49 right now, based on the latest market data from August 14, 2026. Across the 2 printings we track, copies run anywhere from $1.88 to $323.10 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $94.50, roughly 38.0x the raw price, while a PSA 9 sits near $25.99. 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.

Collecting FireRed & LeafGreen?Full master set guide — every card, chase list, and completion cost→