Professor Cozmo's Discovery

Deoxys · #90/107 · Uncommon · 2005

$16.82
Reverse Holofoil · Market price ▲ 128.8% (30d)
Prices as of Oct 16, 2026
NormalReverse Holofoil
SupporterArt · Ken Sugimori
100graded pop
33%gem rate
173.7×PSA 10 vs raw
-84%off ATH $3.63 · Oct 2022
+$23.64EV to grade — marginal
Market data

Printings & price history

Reverse Holofoil▲ 24.3% 7d$16.82
Low $5.00Mid $11.74

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Graded market

Graded values

PSA 10 report →updated 2026-10-16
Grade 6 est.$7.22
Grade 5 est.$6.08
Grade 4 est.$5.02
Grade 3 est.$4.18
Grade 2 est.$3.42
Grade 1 est.$2.89

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$143.65

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

Graded population census · updated 2026-09-17

Reverse Holofoil
PSA41 graded · 3 gem 10
CGC25 graded · 8 gem 10

Population data from PriceCharting, updated monthly.

How much is Professor Cozmo's Discovery #90/107 worth?

As of October 16, 2026, Professor Cozmo's Discovery #90/107 from Deoxys sells for around $0.57 in raw, ungraded condition. Across the 2 printings we track, copies run anywhere from $0.12 to $69.82 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $99.00, roughly 173.7x the raw price, while a PSA 9 sits near $24.68. 41 copies have been graded to date, and 7% 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 Deoxys?Full master set guide — every card, chase list, and completion cost→

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