Grade Matrix
PSA
PSA 6
-
PSA 7
-
PSA 8
-
PSA 9
$20
PSA 10
$59
PSA 10: PriceCharting; refreshed Sep 10, 2026
CGC
CGC 8
-
CGC 9
-
CGC 10
$35
CGC P10
-
Availability
Availabilityi
1/10G: —
Graded: insufficient data · Sales per year: ~9 sales/yr
TCGplayer Price History
NormalProduct 88386Fetched Sep 8, 3:38 AM
TCGplayer market
$0.51
Latest avg sale
$0.34
Units sold
139
Card Value FAQ
How much is a PSA 10 Professor Cozmo's Discovery (Holon Phantoms #89) worth?
A PSA 10 Professor Cozmo's Discovery (Holon Phantoms #89) is currently shown at $58.89. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
What is the Stamped version of Professor Cozmo's Discovery (Holon Phantoms #89) worth?
The Stamped version of Professor Cozmo's Discovery (Holon Phantoms #89) is shown at $7.02 market price. That value is for this stored card variant, not the base printing.