DeoxysEX Ruby & Sapphire · 2005

Professor Cozmo's Discovery

#90NormalUpdated Oct 24, 2026

TCGPlayer market

$0.56

Cardmarket: €0.66
PSA 10: $98.06
PSA 9: $29.82
PSA population: 10

2 finishes

Market prices

Ungraded prices from each marketplace we track, with sales activity where available.

SourcePriceSalesLast salePer weekSignal

TCGPlayer Market USD

$0.56

TCGPlayer Market

USD

$0.56

—

eBay Average USD

$0.55

1 sales

eBay Average

USD

$0.55

1

—

eBay Sold USD

$0.06

1 sales

eBay Sold

USD

$0.06

1

—

Cardmarket EUR

€0.66

Cardmarket

EUR

€0.66

—

Graded prices

Average sold price by grading company and grade.

GradeAverage sold price

Grade 10: $98.061 sold
Grade 9: $29.821 sold

Grader	10	9
PSA	$98.061 sold	$29.821 sold

Population report

How many copies each grading company has graded, and at which grade.

PSA graded

10

40.0%

Gem rate

0

1

0

1

3

4

12345678910

Match confidence: high

Price by condition

Ungraded market price for each printing, from Near Mint down to Damaged.

Normal

NM

Near Mint

$0.56

LP

Lightly Played

$0.35

MP

Moderately Played

$0.22

HP

Heavily Played

$0.48

DM

Damaged

$0.21

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About Professor Cozmo's Discovery

Professor Cozmo's Discovery is a Pokémon card (#90) from Deoxys, part of the EX Ruby & Sapphire series, released in 2005. It is tracked in 2 finishes, each priced separately above.

An ungraded copy currently sells for about $0.56. A PSA 10 (Gem Mint) averages $98.06 — about 175.1× the raw price.

PSA has graded 10 copies, 4 of them at PSA 10 (a 40.0% gem rate). Fewer tens usually means a larger premium for a top-graded copy.

PokiFrame tracks Professor Cozmo's Discovery across TCGPlayer, Cardmarket and eBay sales so you can check its value before you buy, sell or trade.

Browse every Deoxys card →

Professor Cozmo's Discovery — common questions

How much is Professor Cozmo's Discovery worth?: Professor Cozmo's Discovery from Deoxys has a market price of $0.56 for an ungraded copy, based on current TCGPlayer and eBay sales data. Condition, print variant and grading all move that number.
What is a PSA 10 Professor Cozmo's Discovery worth?: Recent PSA 10 (Gem Mint) sales of Professor Cozmo's Discovery averaged $98.06, about 175.1× the ungraded price. A PSA 9 averaged $29.82.
How many PSA 10 Professor Cozmo's Discovery are there?: PSA has graded 10 copies of Professor Cozmo's Discovery, and 4 of them received a PSA 10 — a gem rate of 40.0%.

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