![Cloyster [Green Back] #91 Pokémon card from Japanese Topsun](https://storage.googleapis.com/images.pricecharting.com/ref43d85a2d52de28b628d837a6e3c4e90e8b490fa362abac4221ca4a77c08ce646/240.jpg)
Japanese
Cloyster [Green Back] 91/248
Topsun· Language: Japanese
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Cloyster [Green Back] #91 from Japanese Topsun currently trades at $6.14 raw, with PSA 10 copies reaching $245.25 — a 39.9x grade premium. The card has lost 0.5% over the past 30 days.
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
+0.0%
30d
-0.5%
90d
—
180d
—
1y
+25.8%
2y
+28.5%
5y
—
Quick price facts
Cloyster [Green Back] 91/248 from Topsun has a current raw market value of $6.14.
- Current raw value
- $6.14
- PSA 9 value
- $40.00
- PSA 10 value
- $245
- PSA 10 premium vs raw
- 39.9× raw
Collector Intel
39.9x
Raw → PSA 10
High-risk grade
6.5x
Raw → PSA 9
Grade multiplier
-0.5%
30d Price Move
Falling
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 40x the raw price. The expected value accounts for the realistic probability.
$6
Buy Raw
~$25
Grading Fee
PSA Standard
$245
PSA 10 Value
+$214
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$406.5x raw
PSA 10$24539.9x raw