What is the starting price for an ungraded Koffing Base Set?

Ungraded copies of Koffing [1999-2000] #51 are currently listed starting at $3.

How much is a PSA 10 graded copy of this card worth?

A PSA 10 graded copy of the Koffing Base Set is valued at $93.

Does the card's condition heavily influence its resale value?

Yes, condition is critical; the difference between an ungraded card ($3) and a PSA 10 ($93) shows high impact.

Koffing [1999-2000] #51 — Pokémon Base Set Card Value

Pokémon Base Set

What the Koffing [1999-2000] #51 card from Pokémon Base Set is worth — ungraded and graded (PSA 10).

Koffing [1999-2000] #51 value — Ungraded $3 · Grade 9 $32 · PSA 10 $93. Prices updated July 2026.

Set · Pokémon Base SetGame · Pokémon

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Value by grade

Ungraded

10.7×

$32

Grade 9

31.0×

$93

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 31.0× 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 ↗

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

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

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

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PriceCharting — Koffing [1999-2000] #51 (Pokémon Base Set)$3.25

Item details

Brand: Pokémon
Set: Pokémon Base Set
Game: Pokémon

Koffing [1999-2000] #51 (Pokémon Base Set) card value

An ungraded Koffing [1999-2000] #51 from Pokémon Base Set averages around $3. A Grade 9 copy runs about $32, and a PSA 10 gem-mint commands $93.

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	$3	eBay sold comps
Grade 9	$32	eBay sold comps
PSA 10	$93	eBay sold comps

Frequently asked questions

What is the starting price for an ungraded Koffing Base Set?: Ungraded copies of Koffing [1999-2000] #51 are currently listed starting at $3.
How much is a PSA 10 graded copy of this card worth?: A PSA 10 graded copy of the Koffing Base Set is valued at $93.
Does the card's condition heavily influence its resale value?: Yes, condition is critical; the difference between an ungraded card ($3) and a PSA 10 ($93) shows high impact.