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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Cornerstone Mask Ogerpon ex (Prismatic Evolutions #58) at $0.92 market price (TCGplayer market). Its Delta multiple is 37.9x.
A PSA 10 Cornerstone Mask Ogerpon ex (Prismatic Evolutions #58) is currently shown at $50.00. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 31.3% gem rate for Cornerstone Mask Ogerpon ex (Prismatic Evolutions #58), with 30 PSA 10 copies out of 96 total PSA grades and a 37.9x Delta. That describes the grading profile; it is not financial advice.