What is the starting price for an ungraded Koffing #51?

An ungraded Koffing #51 from the Pokémon Base Set can be found starting at $4.

How much is a PSA 10 version of Koffing #51 worth?

A PSA 10 graded copy of Koffing #51 is currently valued at $236.

Is the grade of Koffing #51 a major factor in its resale value?

Yes, the grade is crucial; a Grade 9 copy sells for $33, compared to the ungraded starting price.

Koffing [Shadowless] #51 — Pokémon Base Set Card Value

Pokémon Base Set

What the Koffing [Shadowless] #51 card from Pokémon Base Set is worth — ungraded and graded (PSA 10).

Koffing [Shadowless] #51 value — Ungraded $4 · Grade 9 $33 · PSA 10 $236. Prices updated July 2026.

Set · Pokémon Base SetGame · Pokémon

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Value by grade

Ungraded

8.3×

$33

Grade 9

59.0×

$236

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 59.0× raw.

Complete-in-box price history

Monthly CIB value, based on sold comps.

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Which version do you have?

To simply own Koffing #51, the Standard version at $2 is the cheapest route. The premium versions offer tangible differences: the 1st Edition commands the highest price at $23, while Shadowless and 1999-2000 offer minor variations for $4 and $3, respectively. Casual collectors should stick to Standard, whereas serious investors seeking higher value should target the 1st Edition.

VersionUsedNewBuy

1st EditionKoffing [1st Edition] #51 — Pokémon Base Set Card Value$22.98$512.79eBay ↗

Shadowless— this pageKoffing [Shadowless] #51 — Pokémon Base Set Card Value$3.72$235.89eBay ↗

1999-2000Koffing [1999-2000] #51 — Pokémon Base Set Card Value$3.25$92.7eBay ↗

StandardKoffing #51 — Pokémon Base Set Card Value$1.74$115eBay ↗

JunkPal AI· resale insightanalyzing sold comps…

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Price data verified against · 1

PriceCharting — Koffing [Shadowless] #51 (Pokémon Base Set)$3.72

Item details

Brand: Pokémon
Set: Pokémon Base Set
Game: Pokémon

Koffing [Shadowless] #51 (Pokémon Base Set) card value

An ungraded Koffing [Shadowless] #51 from Pokémon Base Set averages around $4. A Grade 9 copy runs about $33, and a PSA 10 gem-mint commands $236.

What drives the price

Centering, corners, edges, and surface decide a card's grade — and the grade decides the price. The jump from raw to PSA 10 can be 5–20×, so condition is everything. Holos, first editions, and shadowless prints carry the biggest premiums.

Price guide

Sold values by grade vs. what sellers ask today

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Condition	Value	Based on
Ungraded	$4	eBay sold comps
Grade 9	$33	eBay sold comps
PSA 10	$236	eBay sold comps

Frequently asked questions

What is the starting price for an ungraded Koffing #51?: An ungraded Koffing #51 from the Pokémon Base Set can be found starting at $4.
How much is a PSA 10 version of Koffing #51 worth?: A PSA 10 graded copy of Koffing #51 is currently valued at $236.
Is the grade of Koffing #51 a major factor in its resale value?: Yes, the grade is crucial; a Grade 9 copy sells for $33, compared to the ungraded starting price.