What is the starting price for an ungraded Seaking [Master Ball] #21?

The ungraded version of Seaking [Master Ball] #21 is available for a starting price.

How much is a PSA 10 graded copy worth?

A PSA 10 graded copy of Seaking [Master Ball] #21 is currently valued at $87.

Is there a significant price difference between a Grade 9 and a PSA 10?

Yes, the difference is substantial; a Grade 9 sells for $20 compared to the $87 price for a PSA 10.

Seaking [Master Ball] #21 — Pokémon Prismatic Evolutions Card Value

Pokémon Prismatic Evolutions

What the Seaking [Master Ball] #21 card from Pokémon Prismatic Evolutions is worth — ungraded and graded (PSA 10).

Seaking [Master Ball] #21 value — Ungraded $3 · Grade 9 $20 · PSA 10 $87. Prices updated July 2026.

Set · Pokémon Prismatic EvolutionsGame · Pokémon

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Value by grade

Ungraded

6.7×

$20

Grade 9

29.0×

$87

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 29.0× raw.

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Which version do you have?

For the cheapest ownership of Seaking #21, purchase the Standard version at $0. The Master Ball ($3) and Poke Ball ($1) versions offer slight premium recognition, while the Reverse ($1) might indicate a specific print or packaging. Buyers prioritizing budget should stick to Standard. Those willing to spend a little more for the Master Ball or Poke Ball are paying for minor aesthetic differences or perceived collector value.

VersionUsedNewBuy

Master Ball— this pageSeaking [Master Ball] #21 — Pokémon Prismatic Evolutions Card Value$2.92$86.77eBay ↗

Poke BallSeaking [Poke Ball] #21 — Pokémon Prismatic Evolutions Card Value$0.75$23.99eBay ↗

ReverseSeaking [Reverse] #21 — Pokémon Prismatic Evolutions Card Value$0.69$31.72eBay ↗

StandardSeaking #21 — Pokémon Prismatic Evolutions Card Value$0.3$31.29eBay ↗

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PriceCharting — Seaking [Master Ball] #21 (Pokémon Prismatic Evolutions)$2.92

Item details

Brand: Pokémon
Set: Pokémon Prismatic Evolutions
Game: Pokémon

Seaking [Master Ball] #21 (Pokémon Prismatic Evolutions) card value

An ungraded Seaking [Master Ball] #21 from Pokémon Prismatic Evolutions averages around $3. A Grade 9 copy runs about $20, and a PSA 10 gem-mint commands $87.

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	$20	eBay sold comps
PSA 10	$87	eBay sold comps

Frequently asked questions

What is the starting price for an ungraded Seaking [Master Ball] #21?: The ungraded version of Seaking [Master Ball] #21 is available for a starting price.
How much is a PSA 10 graded copy worth?: A PSA 10 graded copy of Seaking [Master Ball] #21 is currently valued at $87.
Is there a significant price difference between a Grade 9 and a PSA 10?: Yes, the difference is substantial; a Grade 9 sells for $20 compared to the $87 price for a PSA 10.