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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 $25.08 raw, with PSA 10 copies reaching $625.00 — a 24.9x grade premium. The card has moved down 7.0% over the past 30 days and down 0.7% over 90 days, suggesting continued softness.
Current Prices (USD)
Ungraded
$25.08
PSA 7
$36.50
PSA 8
$49.50
PSA 9
$93.42
PSA 10
$625.00
ACE 10
—
BGS 10 Black
$4,065.00
CGC 10 Pristine
$154.00
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Raw Price Trend
7d
-10.3%
30d
-7.0%
90d
-0.7%
180d
+16.3%
1y
+87.5%
2y
+161.5%
5y
+143.0%

Quick price facts

Koffing [1st Edition] 51/102 from Base Set has a current raw market value of $25.08.

Current raw value
$25.08
PSA 9 value
$93.42
PSA 10 value
$625
Raw value 7d
-10.3%
Raw value 30d
-7.0%
PSA 10 premium vs raw
24.9× raw
View all cards from Base Set →
Collector Intel
24.9x
Raw → PSA 10
High-risk grade
3.7x
Raw → PSA 9
Grade multiplier
-7.0%
30d Price Move
Falling
Moderate
Price Stability
10.3% 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 25x the raw price. The expected value accounts for the realistic probability.
$25
Buy Raw
~$25
Grading Fee
PSA Standard
$625
PSA 10 Value
+$575
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$933.7x raw
PSA 10$62524.9x 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: $25.08, PSA 9: $93.42, PSA 10: $625 based on recent sold listings. Prices update daily from real eBay sales.
Is Koffing [1st Edition] #51 worth grading?+
The PSA 10 price of $625 is 24.9× the raw price of $25.08. After a ~$25 grading fee, a PSA 10 result would net approximately $600 — 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

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  • 1 Oct 2026Raw
    tcgplayercompleted-auctions-usednear mint
    $31.64
  • 1 Oct 2026Raw
    ebaycompleted-auctions-usedunknown
    $23.00
  • 1 Oct 2026Raw
    ebaycompleted-auctions-usedlightly played
    $19.95
  • 1 Oct 2026PSA PSA 10
    heritage_auctionscompleted-auctions-manual-onlyunknown
    $625.00
  • 30 Sep 2026Raw
    ebaycompleted-auctions-usedplayed
    $19.99