![Seaking [Poke Ball] #21 Pokémon card from Prismatic Evolutions](https://storage.googleapis.com/images.pricecharting.com/enmvpc6g4rvs4nn6/240.jpg)
Seaking [Poke Ball] 21/131
Prismatic Evolutions
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Seaking [Poke Ball] #21 from Prismatic Evolutions currently trades at $0.75 raw, with PSA 10 copies reaching $23.99 — a 32.0x grade premium. The card has moved down 6.2% over the past 30 days and down 25.7% over 90 days, suggesting continued softness.
Current Prices (USD)
Ungraded
PSA 7
PSA 8
PSA 9
PSA 10
ACE 10
BGS 10 Black
CGC 10 Pristine
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Raw Price Trend
7d
-29.9%
30d
-6.2%
90d
-25.7%
180d
+4.2%
1y
-62.9%
2y
—
5y
—
Quick price facts
Seaking [Poke Ball] 21/131 from Prismatic Evolutions has a current raw market value of $0.75.
- Current raw value
- $0.75
- PSA 9 value
- $14.50
- PSA 10 value
- $23.99
- Raw value 7d
- -29.9%
- Raw value 30d
- -6.2%
- PSA 10 premium vs raw
- 32.0× raw
Collector Intel
32.0x
Raw → PSA 10
High-risk grade
19.3x
Raw → PSA 9
Grade multiplier
-6.2%
30d Price Move
Falling
Volatile
Price Stability
29.9% 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 32x the raw price. The expected value accounts for the realistic probability.
$1
Buy Raw
~$25
Grading Fee
PSA Standard
$24
PSA 10 Value
$-2
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$1519.3x raw
PSA 10$2432.0x raw