Koffing
HeartGold & SoulSilver · #70/123 · Common · 2010
Printings & price history
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Graded values
Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.
PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.
Graded population census · updated 2026-09-17
Population data from PriceCharting, updated monthly.
More Koffing cards all 68 ranked by value →
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“Its thin, filmy body is filled with gases that cause constant sniffles, coughs and teary eyes.”
How much is Koffing #70/123 worth?
Right now (November 6, 2026) the going rate for an ungraded Koffing #70/123 from HeartGold & SoulSilver is about $0.57. Across the 2 printings we track, copies run anywhere from $0.20 to $257.88 depending on the version you're holding.
Grading changes the math on this one: a PSA 10 is valued around $45.81, roughly 80.4x the raw price, while a PSA 9 sits near $10.51. 14 copies have been graded to date, and 14% of them came back a 10 — worth knowing before you pay grading fees.
We update this valuation every night from live market data and verify it against real completed sales — see the chart above for how Koffing has moved over time.
