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PSA 10: Median of 10 sales, last 45 days · newest Oct 13, 2026 · checked Oct 25, 2026
PSA 9: Median of 16 PSA 9 sales in the last 90 days, latest 2026-10-17. Grade 9 guide (all graders): $70.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Koffing (Cosmic Eclipse #243) at $38.22 market price (TCGplayer market). Its Delta multiple is 11.6x.
A PSA 10 Koffing (Cosmic Eclipse #243) is currently shown at $444, the median of 10 PSA 10 sales in the last 45 days (newest Oct 13, 2026).
GemDelta records a 28.8% gem rate for Koffing (Cosmic Eclipse #243), with 650 PSA 10 copies out of 2,257 total PSA grades and a 11.6x Delta. That describes the grading profile; it is not financial advice.
Showing the latest 12 of 29 stored PSA 10 comps.