
Dialga GX (Secret Rare) from the Ultra Prism set (#164) is a Pokemon trading card released in 2018. It has a rarity of Rare Rainbow. Current fair market values for Dialga GX (Secret Rare) are PSA 10: $363.43, PSA 9: $78.36, PSA 8: $45.04, Raw: $44.13. The most recent PSA 10 sale was $375 on June 11, 2026, with 24 sales tracked in the last 30 days. The most recent PSA 9 sale was $97.50 on May 23, 2026. A raw (ungraded) copy last sold for $49.98 on June 23, 2026. CardIndex has tracked 139 total sales across all grades for this card. There are currently 32 active listings for Dialga GX (Secret Rare).