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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Decidueye GX (Promo #38) at $5.16 market price (TCGplayer market). Its Delta multiple is 8.58x.
A PSA 10 Decidueye GX (Promo #38) is currently shown at $59.64. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.