Professor Cozmo's Discovery
Sold price movement
- 12 months ago
- $6£4.52€5.28
- Today
- $6.25£4.70€5.50
- Change
- +$0.25+£0.19+€0.22 (+4.2%)
Market activity
| Price type | Pop share | PopulationPop | Sold 90d | Median | Price |
|---|---|---|---|---|---|
| Raw | – | – | – | $6.25£4.70€5.50 | |
| PSA 6 | 1 | – | – | – | |
| PSA 7 | 2 | – | – | – | |
| PSA 8 | 6 | – | – | $15.50£11.67€13.65 | |
| PSA 9 | 29 | – | – | $55£41.40€48.44 | |
| CGC/BGS 9.5modelled | – | – | – | $61£45.91€53.72 | |
| PSA 10 | 3 | – | – | $189.60£142.70€166.97 | |
About these prices
7.3% of copies sent to PSA come back a 10. The 9.5 is a CGC and BGS grade, so it carries no PSA population.
Priced from 116 completed sales, updated Sep 30, 2026.
Price history
Recent sales
116 completed listings on eBayPokemon TCG Professor Cozmo's Discovery 90/107 EX Deoxys Holo Uncommon EN 90/107$7£5.27€6.16
Show 104 more
Professor Cozmo's Discovery 90/107 Uncommon Deoxys Pokemon Lightly Played 90/107$1.99£1.50€1.75Professor Cozmo's Discovery 90/107 Uncommon Deoxys NM Pokemon Card 90/107$1.99£1.50€1.75Pokémon- Professor Cozmo's Discovery - Holo - Uncommon - Deoxys - 90/107 90/107$6£4.52€5.28Pokémon TCG Professor Cozmo's Discovery EX Deoxys 90/107 Regular Uncommon Mint 90/107$2.11£1.59€1.86Pokémon TCG Professor Cozmo's Discovery EX Deoxys 90/107 Regular Uncommon Mint 90/107$2.50£1.88€2.20Professor Cozmo's Discovery 90/107 EX Deoxys Pokemon Card Holo - NM 90/107$6.29£4.73€5.54PROFESSOR COZMO'S DISCOVERY 90/107 - NON-HOLO EX Deoxys - 2005 POKEMON CARD - NM 90/107$1.79£1.35€1.58Professor Cozmo's Discovery Deoxys Uncommon Pokemon Moderately played 90/107$1.69£1.27€1.49💥 Pokemon TCG Professor Cozmo's Discovery 90/107 EX Deoxys Holo Stamped 2005 90/107$1.04£0.78€0.929PSA 9 MINT Professor Cozmo's Discovery 90/107 EX Deoxys Pokemon Card 187$11.70£8.81€10.30Pokémon TCG - Professor Cozmo's Discovery 90/107 - EX Deoxys - Stamped Reverse$0.99£0.75€0.87Professor Cozmo's Discovery 90/107 Uncommon Pokemon EX Deoxys NM 2005 TCG Era$3.25£2.45€2.86Professor Cozmo's Discovery 90/107 Holo EX Deoxys Pokemon, Free Tracked Shipping 90/107$7.50£5.64€6.6192005 Pokemon PROFESSOR COZMOS DISCOVERY 90/107 Ex DEOXYS RARE HOLO PSA 9 Pop 9! 90/107$51£38.38€44.91102005 Pokemon PROFESSOR COZMOS DISCOVERY 90/107 Ex DEOXYS RARE HOLO PSA 10 90/107$99£74.51€87.1910Cert 52549833Auction$99£74.51€87.199Cert 48140666Auction$13.67£10.29€12.0410Cert 41585155Auction$81£60.96€71.3310Cert 41585155Auction$10.54£7.93€9.2810Cert 41585155Auction$7.59£5.71€6.68More from EX Deoxys
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GyaradosGrading odds
CGC has graded 63 copies. Where they landed:
These are CGC grades. The prices above are for PSA slabs, and a CGC 10 is not the same grade as a PSA 10, so read the two as separate markets rather than one.
Why the verdict weights the odds
Only 13.0% of copies reach a 10, which is why the top price is the wrong number to plan around. Weighting each grade’s PSA price by these odds, a submission is worth $59.81£45.02€52.68 on average against $106.24£79.96€93.56 for the card plus $79.99£60.20€70.44 at Regular, the cheapest level PSA will insure it at. That loses $46.43£34.94€40.89, so a copy is worth more raw.
1 of the 4 grades priced above had no sales at that grade, so the figure is modelled from the grades that did rather than observed.
Card facts
- Card number
- 90/107
- Rarity
- Uncommon
- Illustrator
- Ken Sugimori
- Set released
- Feb 14, 2005
- PSA population, all printings
- 54
- Printings priced
- 2
Looking for a different one? All 5 Professor Cozmo's Discovery cards we price →
The same card in other sets
What moves the price of this card
The Professor Cozmo's Discovery on this page is the Reverse Holofoil printing from EX Deoxys, and it trades at $7.55£5.68€6.65 in near mint condition. The other 1 printing of the same card sits lower, which is normal: the scarcer print run always carries the premium.
Graded, it runs PSA 8 $15.50£11.67€13.65, PSA 9 $55£41.40€48.44, CGC/BGS 9.5 $61£45.91€53.72, PSA 10 $189.60£142.70€166.97. PSA has graded 54 copies of it. 116 completed sales are on file.
What is a PSA 10 Professor Cozmo's Discovery worth?
A PSA 10 Professor Cozmo's Discovery from EX Deoxys sells for $189.60. 7.3% of the copies PSA has graded came back a 10, so that price is the best case rather than the one a submission should expect.
Is Professor Cozmo's Discovery from EX Deoxys worth grading?
On the numbers, no. The average submission is worth $55.20 with every grade weighted by how often this card comes back at it, against $6.25 for a raw copy plus $99.99 to send it through PSA Regular, so it loses $51.04.
Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it, which is why the PSA 10 sits at $189.60£142.70€166.97. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.