
Sigilyph GX (Secret) from the Lost Thunder set (#222) is a Pokemon trading card released in 2018. It has a rarity of Rare Rainbow. Current fair market values for Sigilyph GX (Secret) are PSA 10: $170, PSA 9: $23.50, PSA 8: $11.84, Raw: $8.78. A raw (ungraded) copy last sold for $3.47 on February 20, 2026. 94 copies of Sigilyph GX (Secret) sold in the last 30 days across eBay, Goldin, and other marketplaces. CardIndex has tracked 3 total sales across all grades for this card. There are currently 20 active listings for Sigilyph GX (Secret).