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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Koraidon EX (Promo) at $3.76 market price (TCGplayer market). Its Delta multiple is 52.9x.
A PSA 10 Koraidon EX (Promo) is currently shown at $200. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.