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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Grookey (Twilight Masquerade #14) at $0.36 market price (TCGplayer market). Its Delta multiple is 20.7x.
A PSA 10 Grookey (Twilight Masquerade #14) is currently shown at $39.99. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 30.0% gem rate for Grookey (Twilight Masquerade #14), with 3 PSA 10 copies out of 10 total PSA grades and a 20.7x Delta. That describes the grading profile; it is not financial advice.
The Reverse Holo version of Grookey (Twilight Masquerade #14) is shown at $0.36 market price. That value is for this stored card variant, not the base printing.