Graded Market · 10 completed sales
Mystery Zone graded prices.
As of August 18, 2026, Mystery Zone (Skyridge #137) in PSA 10 sells for a median of $76.78, based on 10 real eBay completed sales; the raw copy’s reference price is $8.34 — a 9.2× grading premium at the top grade.
Across Skyridge, PSA 10 copies sell for 14.0× their raw reference price on average (63 cards, 410 PSA 10 completed sales tracked).
PSA · Mystery Zone
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $76.78 | 3 | 9.2× |
| Mint 9 | $20.50 | 5 | 2.5× |
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.