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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Deoxys EX (Deoxys #99) at $550 market price (TCGplayer market). Its Delta multiple is 28.6x.
A PSA 10 Deoxys EX (Deoxys #99) is currently shown at $2,912. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 2.91% gem rate for Deoxys EX (Deoxys #99), with 21 PSA 10 copies out of 721 total PSA grades and a 28.6x Delta. That describes the grading profile; it is not financial advice.