Koffing 51/102
Base Set
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Koffing #51 from Base Set currently trades at $1.80 raw, with PSA 10 copies reaching $136.72 — a 76.0x grade premium. The card has moved up 22.4% over the past 30 days and up 71.4% over 90 days, suggesting sustained buying interest.
Current Prices (USD)
Ungraded
PSA 7
PSA 8
PSA 9
PSA 10
ACE 10
BGS 10 Black
CGC 10 Pristine
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Raw Price Trend
7d
+5.3%
30d
+22.4%
90d
+71.4%
180d
+51.3%
1y
+4.7%
2y
+9.1%
5y
+80.0%
Quick price facts
Koffing 51/102 from Base Set has a current raw market value of $1.80.
- Current raw value
- $1.80
- PSA 9 value
- $34.25
- PSA 10 value
- $137
- Raw value 7d
- +5.3%
- Raw value 30d
- +22.4%
- PSA 10 premium vs raw
- 76.0× raw
Collector Intel
76.0x
Raw → PSA 10
High-risk grade
19.0x
Raw → PSA 9
Grade multiplier
+22.4%
30d Price Move
Rising
Moderate
Price Stability
5.3% swing this week
Calculated from price history, PSA population data, and market trends. Not financial advice.
Grading Calculator
Based on PSA Standard tier (~$25 USD). Assumes a perfect PSA 10 result — actual outcome depends on card condition.
⚠️ High-variance grade. PSA 10 is 76x the raw price. The expected value accounts for the realistic probability.
$2
Buy Raw
~$25
Grading Fee
PSA Standard
$137
PSA 10 Value
+$110
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$3419.0x raw
PSA 10$13776.0x raw