Japanese
Cornerstone Mask Ogerpon Ex 91/187
Terastal Festival· Language: Japanese
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Cornerstone Mask Ogerpon Ex #91 from Japanese Terastal Festival currently trades at $1.49 raw, with PSA 10 copies reaching $28.99 — a 19.5x grade premium.
Current Prices (USD)
Ungraded
PSA 7
PSA 8
PSA 9
PSA 10
ACE 10
BGS 10 Black
CGC 10 Pristine
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Quick price facts
Cornerstone Mask Ogerpon Ex 91/187 from Terastal Festival has a current raw market value of $1.49.
- Current raw value
- $1.49
- PSA 9 value
- $10.81
- PSA 10 value
- $28.99
- PSA 10 premium vs raw
- 19.5× raw
Collector Intel
19.5x
Raw → PSA 10
High-risk grade
7.3x
Raw → PSA 9
Grade multiplier
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 19x the raw price. The expected value accounts for the realistic probability.
$1
Buy Raw
~$25
Grading Fee
PSA Standard
$29
PSA 10 Value
+$3
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$117.3x raw
PSA 10$2919.5x raw