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Seaking [Master Ball] #21 Pokémon card from Prismatic Evolutions

Seaking [Master Ball] 21/131

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Seaking [Master Ball] #21 from Prismatic Evolutions currently trades at $3.00 raw, with PSA 10 copies reaching $102.26 — a 34.1x grade premium. The card has moved up 9.9% over the past 30 days and up 20.0% over 90 days, suggesting sustained buying interest.
Current Prices (USD)
Ungraded
$3.00
PSA 7
$15.18
PSA 8
$15.18
PSA 9
$15.25
PSA 10
$102.26
ACE 10
—
BGS 10 Black
$665.00
CGC 10 Pristine
$47.00
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Raw Price Trend
7d
+0.0%
30d
+9.9%
90d
+20.0%
180d
+2.0%
1y
-33.3%
2y
—
5y
—

Quick price facts

Seaking [Master Ball] 21/131 from Prismatic Evolutions has a current raw market value of $3.00.

Current raw value
$3.00
PSA 9 value
$15.25
PSA 10 value
$102
Raw value 30d
+9.9%
PSA 10 premium vs raw
34.1× raw
View all cards from Prismatic Evolutions →
Collector Intel
34.1x
Raw → PSA 10
High-risk grade
5.1x
Raw → PSA 9
Grade multiplier
+9.9%
30d Price Move
Rising
Steady
Price Stability
0.0% swing this week

Calculated from price history, PSA population data, and market trends. Not financial advice.

Grading Calculator

Based on PSA Standard tier (~$25 USD). Assumes a perfect PSA 10 result — actual outcome depends on card condition.

⚠️ High-variance grade. PSA 10 is 34x the raw price. The expected value accounts for the realistic probability.
$3
Buy Raw
~$25
Grading Fee
PSA Standard
$102
PSA 10 Value
+$74
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$155.1x raw
PSA 10$10234.1x raw

Frequently asked questions

How much is Seaking [Master Ball] #21 from Prismatic Evolutions worth?+
Seaking [Master Ball] #21 from Prismatic Evolutions is currently worth Raw: $3.00, PSA 9: $15.25, PSA 10: $102 based on recent sold listings. Prices update daily from real eBay sales.
Is Seaking [Master Ball] #21 worth grading?+
The PSA 10 price of $102 is 34.1× the raw price of $3.00. After a ~$25 grading fee, a PSA 10 result would net approximately $99.26 — assuming the card grades a 10.
Where do PokePrices Seaking [Master Ball] #21 prices come from?+
Prices are tracked nightly from real sold listings on PriceCharting (raw, PSA 9 and PSA 10). PSA population data is sourced from PSA's public reports. We do not use asking prices — only confirmed sales.

Recent verified sales

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  • 31 Jul 2026Graded
    ebaycompleted-auctions-gradedunknown
    $1.25
  • 29 Jul 2026PSA PSA 10
    ebaycompleted-auctions-manual-onlyunknown
    $92.00
  • 24 Jul 2026Raw
    tcgplayercompleted-auctions-usednear mint
    $2.49
  • 24 Jul 2026PSA PSA 10
    ebaycompleted-auctions-manual-onlyunknown
    $112.51
  • 22 Jul 2026Raw
    ebaycompleted-auctions-usednear mint
    $3.25