How much is a graded PSA 10 version of this card?

A PSA 10 graded copy of Undersea Ruins #138 is valued at $307.

Is the card more valuable if it is graded or ungraded?

The PSA 10 grade significantly increases the card's value compared to the ungraded price of $14.

Undersea Ruins [Reverse Holo] #138 — Pokémon Aquapolis Card Value

Name: Undersea Ruins [Reverse Holo] #138 — Pokémon Aquapolis Card Value
Brand: Pokémon

Pokémon Aquapolis

What the Undersea Ruins [Reverse Holo] #138 card from Pokémon Aquapolis is worth — ungraded and graded (PSA 10).

Undersea Ruins [Reverse Holo] #138 value — Ungraded $14 · Grade 9 $40 · PSA 10 $307. Prices updated July 2026.

Set · Pokémon AquapolisGame · Pokémon

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Value by grade

$14

Ungraded

2.9×

$40

Grade 9

21.9×

$307

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 21.9× raw.

Complete-in-box price history

Monthly CIB value, based on sold comps.

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Which version do you have?

If you simply want the card, buy the Standard version for $6. The Reverse Holo version at $14 offers a visual upgrade, providing a more premium look to the card itself. Buyers on a tight budget should stick to the Standard, while those willing to spend the extra $8 for the Reverse Holo are investing in a more visually appealing version of the same collectible.

VersionUsedNewBuy

Reverse Holo— this pageUndersea Ruins [Reverse Holo] #138 — Pokémon Aquapolis Card Value$13.99$306.57eBay ↗

StandardUndersea Ruins #138 — Pokémon Aquapolis Card Value$5.75$56.58eBay ↗

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PriceCharting — Undersea Ruins [Reverse Holo] #138 (Pokémon Aquapolis)$13.99

Item details

Brand: Pokémon
Set: Pokémon Aquapolis
Game: Pokémon

Undersea Ruins [Reverse Holo] #138 (Pokémon Aquapolis) card value

An ungraded Undersea Ruins [Reverse Holo] #138 from Pokémon Aquapolis averages around $14. A Grade 9 copy runs about $40, and a PSA 10 gem-mint commands $307.

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	$14	eBay sold comps
Grade 9	$40	eBay sold comps
PSA 10	$307	eBay sold comps

Frequently asked questions

What is the starting price for an ungraded Undersea Ruins #138?: Ungraded copies of Undersea Ruins [Reverse Holo] #138 from Pokémon Aquapolis are currently valued around $14.
How much is a graded PSA 10 version of this card?: A PSA 10 graded copy of Undersea Ruins #138 is valued at $307.
Is the card more valuable if it is graded or ungraded?: The PSA 10 grade significantly increases the card's value compared to the ungraded price of $14.