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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Mewtwo (Rumble #9) at $550 market price (TCGplayer market). Its Delta multiple is 56.7x.
A PSA 10 Mewtwo (Rumble #9) is currently shown at $19,845. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 3.95% gem rate for Mewtwo (Rumble #9), with 26 PSA 10 copies out of 659 total PSA grades and a 56.7x Delta. That describes the grading profile; it is not financial advice.