How much is a PSA 10 Cornerstone Mask Ogerpon Ex 91?

A PSA 10 Cornerstone Mask Ogerpon Ex 91 is currently valued at $17.26. This is a 1051% premium over the raw card price.

Cornerstone Mask Ogerpon Ex 91 PSA 10

Terastal Festival

$17.26

PSA 10

Based on 4 sales

1051% premium

$15.76 over raw ($1.50)

Population

PSA 10 population28

Total graded39

Gem rate72%

ScarcityVery Rare

Liquidity

Sales velocityMedium

Last 30 days7 sales

Total recorded sales49

PSA 10 Price History

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Recent PSA 10 Sales

2026-03-24 · ebay $15.00

2025-11-26 · ebay $17.50

2025-07-27 · ebay $20.00

2025-04-18 · ebay $16.00

PSA 10s from Terastal Festival

$741.39

$214.06

$172.75

$168.47

$136.25

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