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PSA 10: Median of 3 sales, last 45 days · newest Oct 25, 2026 · checked Oct 25, 2026
PSA 9: Median of 2 PSA 9 sales in the last 90 days, latest 2026-10-15. Grade 9 guide (all graders): $40.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Sigilyph GX (Lost Thunder #222) at $10.24 market price (TCGplayer market). Its Delta multiple is 41.2x.
A PSA 10 Sigilyph GX (Lost Thunder #222) is currently shown at $422, the median of 3 PSA 10 sales in the last 45 days (newest Oct 25, 2026).
GemDelta records a 30.6% gem rate for Sigilyph GX (Lost Thunder #222), with 49 PSA 10 copies out of 160 total PSA grades and a 41.2x Delta. That describes the grading profile; it is not financial advice.
| Date | Listing | Sale |
|---|---|---|
| Oct 25, 2026 | 2018 POKEMON SUN & MOON LOST THUNDER SECRET #222 FULL ART/SIGILYPH GX PSA 10 #222 | $422.00 |
| Oct 13, 2026 | POKEMON LOST THUNDER SIGILYPH GX #222 SECRET RARE PSA 10 GEM MINT #* (POP 49) | $1099.95 |
| Sep 12, 2026 | Pokemon 2018 - Lost Thunder - Sigilyph GX #222 - Secret - PSA 10 [POP 49] #222 | $210.57 |
| Jun 4, 2026 | 2018 POKEMON SUN & MOON LOST THUNDER SECRET #222 FULL ART/SIGILYPH GX PSA 10 #222 | $244.50 |