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PSA 10: Median of 3 sales, last 45 days · newest Oct 16, 2026 · checked Oct 26, 2026
PSA 9: Median of 10 PSA 9 sales in the last 90 days, latest 2026-10-19. Grade 9 guide (all graders): $137.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Onix (Base Set #56) at $30.03 market price (TCGplayer market). Its Delta multiple is 25.0x.
A PSA 10 Onix (Base Set #56) is currently shown at $750, the median of 3 PSA 10 sales in the last 45 days (newest Oct 16, 2026).
GemDelta records a 20.0% gem rate for Onix (Base Set #56), with 557 PSA 10 copies out of 2,791 total PSA grades and a 25.0x Delta. That describes the grading profile; it is not financial advice.
Showing the latest 12 of 13 stored PSA 10 comps.