Lab TCG
Koffing (Secret)

Koffing (Secret) 243/236

SM - Cosmic Eclipse • Secret Rare • Holofoil

$37.99↑ +$0.89 (+2.4%) this week
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Koffing (Secret) 243/236 from SM - Cosmic Eclipse has a current TCGplayer market price of $37.99. It is up +0.8% over the past 30 days. A PSA 10 copy is valued around $350.00. At current prices, grading a top-grade copy looks worthwhile.

Price Snapshot

Market
$37.99
Low
$29.79
Mid
$41.60
High
$289.17
7-Day:+$0.89 (+2.4%)
30-Day:+$0.31 (+0.8%)
2026-08-24
2026-08-31
$37.99$37.77$37.55$37.32$37.10Aug-26
TCG Current
$37.99
Change
+$0.89 | +2.4%
Low
$37.10
High
$37.99

Where to Buy

TCGPlayer$37.99
Buy Now
eBay$350.00PSA 10 comps
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TCGplayer for raw copies (condition is graded by the marketplace, not the seller). eBay for slabs. Links may earn us a commission at no cost to you.

Graded Prices

PSA 10
$350.00
PSA 9
—
PSA 8
—

Should you grade it?

Worth grading
Net if it 10s
+$237.51
ROI
+354.5%

From $37.99 raw to $350.00 in a PSA 10, after ~$25 grading, tracked shipping, and eBay fees. Grades below 10 return less — most cards need a realistic 10 to profit. Not financial advice.

Other cards in SM - Cosmic Eclipse

View full set →