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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Onix (Base Set 2 #84) at $1.07 market price (TCGplayer market). Its Delta multiple is 39.1x.
A PSA 10 Onix (Base Set 2 #84) is currently shown at $64.49. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 25.4% gem rate for Onix (Base Set 2 #84), with 32 PSA 10 copies out of 126 total PSA grades and a 39.1x Delta. That describes the grading profile; it is not financial advice.