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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Deoxys (Promo #SM164) at $20.17 market price (TCGplayer market). Its Delta multiple is 8.46x.
A PSA 10 Deoxys (Promo #SM164) is currently shown at $127. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.