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Koffing [1st Edition] #51 Pokémon card from Base Set

Koffing [1st Edition] 51/102

Base Set

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Koffing [1st Edition] #51 from Base Set currently trades at $22.75 raw, with PSA 10 copies reaching $583.93 — a 25.7x grade premium. Price is up 1.2% in the last 30 days, though the 90-day trend tells a different story at -9.7% — worth watching for a clearer direction.
Current Prices (USD)
Ungraded
$22.75
PSA 7
$33.09
PSA 8
$45.54
PSA 9
$80.79
PSA 10
$583.93
ACE 10
—
BGS 10 Black
$3,795.00
CGC 10 Pristine
$154.00
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Raw Price Trend
7d
-9.5%
30d
+1.2%
90d
-9.7%
180d
+45.7%
1y
+43.0%
2y
+85.7%
5y
+139.5%

Quick price facts

Koffing [1st Edition] 51/102 from Base Set has a current raw market value of $22.75.

Current raw value
$22.75
PSA 9 value
$80.79
PSA 10 value
$584
Raw value 7d
-9.5%
Raw value 30d
+1.2%
PSA 10 premium vs raw
25.7× raw
View all cards from Base Set →
Collector Intel
25.7x
Raw → PSA 10
High-risk grade
3.6x
Raw → PSA 9
Grade multiplier
+1.2%
30d Price Move
Rising
Moderate
Price Stability
9.5% 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 26x the raw price. The expected value accounts for the realistic probability.
$23
Buy Raw
~$25
Grading Fee
PSA Standard
$584
PSA 10 Value
+$536
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$813.6x raw
PSA 10$58425.7x raw

Frequently asked questions

How much is Koffing [1st Edition] #51 from Base Set worth?+
Koffing [1st Edition] #51 from Base Set is currently worth Raw: $22.75, PSA 9: $80.79, PSA 10: $584 based on recent sold listings. Prices update daily from real eBay sales.
Is Koffing [1st Edition] #51 worth grading?+
The PSA 10 price of $584 is 25.7× the raw price of $22.75. After a ~$25 grading fee, a PSA 10 result would net approximately $561 — assuming the card grades a 10.
Where do PokePrices Koffing [1st Edition] #51 prices come from?+
Prices are tracked nightly from real sold listings on PriceCharting (raw, PSA 9 and PSA 10). PSA population data is sourced from PSA's public reports. We do not use asking prices — only confirmed sales.

Recent verified sales

Find this card on eBay →Affiliate · we may earn commission
  • 2 Aug 2026Raw
    ebaycompleted-auctions-usedplayed
    $19.99
  • 1 Aug 2026Raw
    ebaycompleted-auctions-usedplayed
    $18.00
  • 30 Jul 2026Raw
    ebaycompleted-auctions-usedplayed
    $19.95
  • 26 Jul 2026Raw
    tcgplayercompleted-auctions-usednear mint
    $33.65
  • 26 Jul 2026Graded
    ebaycompleted-auctions-gradedunknown
    $98.00