Cloyster20/112 · FireRed & LeafGreen Price & Value
Market value · Near Mint · Normal
- PSA 8$18modelled · pop 7
- PSA 9$303 sold · 90d · pop 19
- PSA 10$1351 sold · 90d · pop 12
What's your copy worth?
What this price is based on
Medium confidence3 sales in 90 days — enough for a guide, not a guarantee.
Recent PSA 9 sales
- Aug 23, 2026eBay — 2004 POKEMON EX FIRE RED & LEAF GREEN #20 CLOYSTER PSA 9$29.58
- Aug 16, 2026eBay — Pokemon Cards - PSA 9 Cloyster 20/112 - Ex Fire Red & Leaf Green - MINT - PSA9$60.91
- Jul 28, 2026eBay — 2004 POKEMON EX FIRE RED & LEAF GREEN #20 CLOYSTER PSA 9$27.00
By grade
- PSA 9$29.583 sales
- PSA 10$1203 sales
- CGC 9.6$55.001 sale
- CGC 9.5$20.001 sale
From 8 completed sales recorded between Jul 23, 2025 and Aug 24, 2026. Sold prices only — asking prices are never counted.
Grade it or not
NOT WORTH ITBased on 8 graded sales and 1,305,862 pop-report entries for a near-mint copy.
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✨ Is it worth it?
An AI market read of this card — value, momentum, grading economics, liquidity. It lays out the data; you decide.
Cloyster is a Rare Pokémon card from FireRed & LeafGreen (#20, released 2004), illustrated by Aya Kusube. It's a Stage 1 Water-type Pokémon with 70 HP, evolving from Shellder, weak to Lightning ×2. Its current blended market value is $2.58 ungraded, with a PSA 10 worth around $135 — a gem-mint grading premium of roughly 52× the raw value. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 5 September 2026.
Cloyster price history & recent sales
Price history · Raw
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Verified sales history5 in 90 days✓ real completed listings
Real completed eBay sales, refreshed periodically. Grade read from the listing title. Implausibly priced listings (lots, proxies, empty slabs) and wrong-variant sales are filtered out. Links to eBay are affiliate links — we may earn a commission.
Demand & liquidity
Last sold $55 · CGC 9.6 · 24 Aug 2026
How often each grade sells · last 90 days, all marketplaces
Is Cloyster worth grading?
Expected return across every likely grade, after fees — the realistic average, not the best case. Only 31.6% of copies gem (PSA 10 best case +$61); most land at PSA 9 or below.
The odds
Cloyster is a Rare in FireRed & LeafGreen — the pack's hit slot lands on Rare 67% of the time, split across 14 rare cards in the set, so pulling this exact card is roughly 1 in 21 packs.
Estimates only. Pack odds come from CardTrack's pack model (the same one behind the pack simulator) — not an official rate. Grading odds are the real cumulative PSA population, which skews toward nicer, resubmitted copies, so it overstates the true first-submission gem rate. Full grade-by-grade breakdown below.
Grade-by-grade ROI & risk-adjusted outcomesNet vs raw per target grade, plus the probability-weighted distribution
| Target grade | Est. value | Grading fee | Net vs raw | Multiple |
|---|---|---|---|---|
| PSA 10 | $135.00 | $71 | +$61 | 52.3× |
| PSA 9 | $29.58 | $70 | −$43 | 11.5× |
| PSA 8 | $18.20 | $70 | −$55 | 7.1× |
⚖️ Risk-adjusted return
Best case isn't the whole story. Weighting every grade by how often it actually happens, across 38 PSA-graded copies:
| Likely outcome | Chance | Value |
|---|---|---|
| PSA 10 | 31.6% | $135.00 |
| PSA 9 | 44.7% | $30.00 |
| PSA ≤8 | 23.7% | $15.00 |
Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-06-28; the paused PSA Value tier is excluded so this isn't overstated. Gem rate is estimated from cumulative PSA population, which skews toward nicer, resubmitted copies — so it overstates the true grade rate. Treat it as a guide, not a guarantee.
Population across gradersPSA, CGC, BGS & TAG — every grade, with gem rates
Only 30% of 40 PSA-graded Cloyster copies are a gem-mint 10 (12 of 40) — the rest grade lower.
Real graded population from PSA, CGC, BGS & TAG — a lower gem rate means a Cloyster 10 is harder to pull.
Copies for sale right now
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All grades & conditions
Every grade we pricePSA / CGC / BGS ladder with per-grade population
| Grade | Relative value | Price |
|---|---|---|
| PSA 10pop 121 · 90d | $135$115–$155 | |
| PSA 9pop 193 · 90d | $30$25–$34 | |
| PSA 8pop 7 | modelled$18$15–$21 |
Raw condition ladderNM → damaged, with real sold medians where we have them
Price by printingBase vs reverse holo vs 1st edition — priced separately
Price by variant
TCGplayer market price per printing — reverse holo, 1st edition and unlimited often differ sharply.
Market dataCross-market spread, EU price, momentum & community buzz
Cross-market prices
2% spreadCurrently 2% cheaper on PriceCharting than TCGplayer. These are independent market prices for the same card — a wide gap can mean a buying opportunity. Informational only, not arbitrage advice.
Market signal
Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.
Card textAttacks, abilities, weakness / resistance / retreat
Evolves from Shellder.
Any damage done to Cloyster by attacks is reduced by 20 (after applying Weakness and Resistance).
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.
About the PokémonSpecies, generation, evolution line
Card detailsSet, rarity, artist, Pokédex & specs
Other Cloyster cards
There are 9 different Cloyster printings — make sure you're valuing the right one. This is FireRed & LeafGreen #20 (Rare).
More from FireRed & LeafGreen
Frequently asked questions
How much is Cloyster (FireRed & LeafGreen #20) worth?
As of 5 September 2026, Cloyster from FireRed & LeafGreen is worth approximately $2.58 ungraded (near-mint), and around $135 in PSA 10 gem mint. Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.
What is the PSA 10 price for Cloyster?
A PSA 10 (gem mint) Cloyster from FireRed & LeafGreen is worth around $135 — roughly 52× the raw ungraded value of $2.58.
Should I grade my Cloyster?
A PSA 10 sells for about $135 versus $2.58 raw — roughly a 52× uplift. Grading is worth it when that premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10. See the "Should you grade it?" estimate above for net profit per grade.
Is Cloyster rare?
Cloyster is a Rare card from FireRed & LeafGreen (card #20), illustrated by Aya Kusube. Its current blended market value is $2.58 ungraded.
Cite & embed this card
Free to use with attribution to CardTrack.
Cloyster (FireRed & LeafGreen #20) — Pokémon market value $2.58, PSA 10 $135.00. Source: CardTrack, https://cardtrack.com/pokemon/card/firered-leafgreen/cloyster-20<iframe src="https://cardtrack.com/embed/card?id=ex6-20" width="100%" height="160" style="border:0;max-width:460px" title="Cloyster price — CardTrack" loading="lazy"></iframe>
<p style="font:12px system-ui">Source: <a href="https://cardtrack.com">CardTrack</a></p>