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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Onix (Fire Red & Leaf Green #42) at $2.72 market price (TCGplayer market). Its Delta multiple is 41.1x.
A PSA 10 Onix (Fire Red & Leaf Green #42) is currently shown at $111. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 17.1% gem rate for Onix (Fire Red & Leaf Green #42), with 6 PSA 10 copies out of 35 total PSA grades and a 41.1x Delta. That describes the grading profile; it is not financial advice.