What is the estimated resale value for an ungraded Onix #56?

An ungraded Onix [1st Edition] #56 is currently valued around $21.

How much does a PSA 10 graded copy sell for?

A PSA 10 graded copy of Onix [1st Edition] #56 sells for approximately $762.

Is the condition of the card the biggest factor in its price?

Yes, the condition significantly impacts value; a Grade 9 copy is priced at $123 compared to ungraded.

Onix [1st Edition] #56 — Pokémon Base Set Card Value

Pokémon Base Set

What the Onix [1st Edition] #56 card from Pokémon Base Set is worth — ungraded and graded (PSA 10).

Onix [1st Edition] #56 value — Ungraded $21 · Grade 9 $123 · PSA 10 $762. Prices updated July 2026.

Set · Pokémon Base SetGame · Pokémon

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Value by grade

$21

Ungraded

5.9×

$123

Grade 9

36.3×

$762

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 36.3× raw.

Complete-in-box price history

Monthly CIB value, based on sold comps.

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Which version do you have?

For the cheapest way to own Onix #56, grab the Standard version for only $2. The premium versions offer specific collecting value: Trainer Deck A is the most valuable at $260, while 1st Edition and Shadowless offer slight scarcity premiums over the $2 Standard. If you are a casual collector, save your money; serious investors should pay for the Trainer Deck A for maximum return.

VersionUsedNewBuy

Trainer Deck AOnix [Trainer Deck A] #56 — Pokémon Base Set Card Value$260.18—eBay ↗

1st Edition— this pageOnix [1st Edition] #56 — Pokémon Base Set Card Value$20.64$762.49eBay ↗

ShadowlessOnix [Shadowless] #56 — Pokémon Base Set Card Value$2.48$179.34eBay ↗

1999-2000Onix [1999-2000] #56 — Pokémon Base Set Card Value$2.32$155.5eBay ↗

StandardOnix #56 — Pokémon Base Set Card Value$1.94$126.51eBay ↗

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Price data verified against · 1

PriceCharting — Onix [1st Edition] #56 (Pokémon Base Set)$20.64

Item details

Brand: Pokémon
Set: Pokémon Base Set
Game: Pokémon

Onix [1st Edition] #56 (Pokémon Base Set) card value

An ungraded Onix [1st Edition] #56 from Pokémon Base Set averages around $21. A Grade 9 copy runs about $123, and a PSA 10 gem-mint commands $762.

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	$21	eBay sold comps
Grade 9	$123	eBay sold comps
PSA 10	$762	eBay sold comps

Frequently asked questions

What is the estimated resale value for an ungraded Onix #56?: An ungraded Onix [1st Edition] #56 is currently valued around $21.
How much does a PSA 10 graded copy sell for?: A PSA 10 graded copy of Onix [1st Edition] #56 sells for approximately $762.
Is the condition of the card the biggest factor in its price?: Yes, the condition significantly impacts value; a Grade 9 copy is priced at $123 compared to ungraded.