Graded Market · 49 completed sales
Koffing (Secret) graded prices.
As of August 21, 2026, Koffing (Secret) (Cosmic Eclipse #243) in PSA 10 sells for a median of $327.50, based on 49 real eBay completed sales; the raw copy’s reference price is $36.88 — a 8.9× grading premium at the top grade.
Across Cosmic Eclipse, PSA 10 copies sell for 33.1× their raw reference price on average (65 cards, 1,346 PSA 10 completed sales tracked).
PSA · Koffing (Secret)
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $327.50 | 15 | 8.9× |
| Mint 9 | $54.99 | 15 | 1.5× |
| NM-MT 8 | $35.28 | 7 | 1.0× |
CGC · Koffing (Secret)
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $118.75 | 3 | 3.2× |
Medians of real eBay completed sales per grade; small sample sizes deserve caution. Prices are dated reference values — cite them with the as-of date above. Attribution: CardIntel (cardintel.io). See the methodology.