Cornerstone Mask Ogerpon ex from the Prismatic Evolutions set (#58) is a Pokemon trading card released in 2025. It has a rarity of Double Rare. Current fair market values for Cornerstone Mask Ogerpon ex are PSA 10: $44, PSA 9: $10.70, PSA 8: $9.36, Raw: $1.80. The most recent PSA 10 sale was $50 on December 10, 2025, with 4 sales tracked in the last 30 days. The most recent PSA 9 sale was $14 on May 22, 2026. A raw (ungraded) copy last sold for $2.49 on June 23, 2026. CardIndex has tracked 124 total sales across all grades for this card. There are currently 110 active listings for Cornerstone Mask Ogerpon ex.
