Graded Market · 8 completed sales
Sigilyph GX (Secret) graded prices.
As of August 2, 2026, Sigilyph GX (Secret) (Lost Thunder #222) in PSA 10 sells for a median of $249.99, based on 8 real eBay completed sales; the raw copy’s reference price is $9.29 — a 26.9× grading premium at the top grade.
Across Lost Thunder, PSA 10 copies sell for 37.2× their raw reference price on average (40 cards, 349 PSA 10 completed sales tracked).
PSA · Sigilyph GX (Secret)
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $249.99 | 3 | 26.9× |
Medians of real eBay completed sales per grade; small sample sizes deserve caution. Prices are dated reference values — cite them with the as-of date above. Attribution: CardIntel (cardintel.io). See the methodology.