Professor Cozmo's Discovery90/107 · Deoxys Price & Value
Market value · Near Mint · Normal
Typical copy sold $2 3 sales, all conditions
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 Raw sales
- Aug 9, 2026eBay — Professor Cozmo's Discovery 90/107 Uncommon Deoxys Pokemon Lightly PlayedLP$1.99
- Jul 27, 2026eBay — Pokémon- Professor Cozmo's Discovery - Holo - Uncommon - Deoxys - 90/107$6.00
- Jul 20, 2026eBay — Nintendo Pokémon TCG Professor Cozmo's Discovery 90/107 Deoxys Rev Holo Stmpd MPMP$1.01
By grade
- Raw$4.003 sales
- CGC 10$12.002 sales
From 5 completed sales recorded between Feb 1, 2026 and Aug 9, 2026. Sold prices only — asking prices are never counted. The median above is computed over the 2 sales of the printing this page lists; reverse holo copies are real sales of a different card and are shown separately rather than mixed in.
Grade it or not
NOT WORTH ITBased on 2 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.
Professor Cozmo's Discovery is a Uncommon Pokémon card from Deoxys (#90, released 2005), illustrated by Ken Sugimori. It's a Supporter Trainer card. Its current blended market value is $0.53 ungraded, with a PSA 10 worth around $99 — a gem-mint grading premium of roughly 187× the raw value. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 6 September 2026.
Professor Cozmo's Discovery price history & recent sales
Price history · Raw
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Verified sales history3 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 $2 · Raw · 9 Aug 2026
Is Professor Cozmo's Discovery worth grading?
Expected return across every likely grade, after fees — the realistic average, not the best case. Only 40% of copies gem (PSA 10 best case +$27); most land at PSA 9 or below.
The odds
Professor Cozmo's Discovery is a Uncommoncard — a guaranteed slot in every pack, not a rarity gamble, so there's no pull-odds figure for it.
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 | $99.00 | $71 | +$27 | 186.8× |
⚖️ Risk-adjusted return
Best case isn't the whole story. Weighting every grade by how often it actually happens, across 10 PSA-graded copies:
| Likely outcome | Chance | Value |
|---|---|---|
| PSA 10 | 40% | $99.00 |
| PSA 9 | 30% | $40.00 |
| PSA ≤8 | 30% | $1.00 |
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 40% of 10 PSA-graded Professor Cozmo's Discovery copies are a gem-mint 10 (4 of 10) — the rest grade lower.
Real graded population from PSA, CGC, BGS & TAG — a lower gem rate means a Professor Cozmo's Discovery 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 4 | modelled$99$99–$99 |
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
49% spreadCurrently 49% cheaper on TCGplayer than PriceCharting. 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
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Card detailsSet, rarity, artist, Pokédex & specs
Other Professor Cozmo's Discovery cards
There are 3 different Professor Cozmo's Discovery printings — make sure you're valuing the right one. This is Deoxys #90 (Uncommon).
More from Deoxys
Frequently asked questions
How much is Professor Cozmo's Discovery (Deoxys #90) worth?
As of 6 September 2026, Professor Cozmo's Discovery from Deoxys is worth approximately $0.53 ungraded (near-mint), and around $99 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 Professor Cozmo's Discovery?
A PSA 10 (gem mint) Professor Cozmo's Discovery from Deoxys is worth around $99 — roughly 187× the raw ungraded value of $0.53.
Should I grade my Professor Cozmo's Discovery?
A PSA 10 sells for about $99 versus $0.53 raw — roughly a 187× 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 Professor Cozmo's Discovery rare?
Professor Cozmo's Discovery is a Uncommon card from Deoxys (card #90), illustrated by Ken Sugimori. Its current blended market value is $0.53 ungraded.
Cite & embed this card
Free to use with attribution to CardTrack.
Professor Cozmo's Discovery (Deoxys #90) — Pokémon market value $0.53, PSA 10 $99.00. Source: CardTrack, https://cardtrack.com/pokemon/card/deoxys/professor-cozmo-s-discovery-90<iframe src="https://cardtrack.com/embed/card?id=ex8-90" width="100%" height="160" style="border:0;max-width:460px" title="Professor Cozmo's Discovery price — CardTrack" loading="lazy"></iframe>
<p style="font:12px system-ui">Source: <a href="https://cardtrack.com">CardTrack</a></p>