Dashboard
PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Professor Cozmo's Discovery (Deoxys #90) at $0.54 market price (TCGplayer market). Its Delta multiple is 83.2x.
A PSA 10 Professor Cozmo's Discovery (Deoxys #90) is currently shown at $99.00. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 40.0% gem rate for Professor Cozmo's Discovery (Deoxys #90), with 4 PSA 10 copies out of 10 total PSA grades and a 83.2x Delta. That describes the grading profile; it is not financial advice.