Graded Market · 12 completed sales
Magma Basin (Secret) graded prices.
As of July 8, 2026, Magma Basin (Secret) (Brilliant Stars #185) in PSA 10 sells for a median of $37.49, based on 12 real eBay completed sales; the raw copy’s reference price is $2.57 — a 14.6× grading premium at the top grade.
PSA · Magma Basin (Secret)
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $37.49 | 4 | 14.6× |
| Mint 9 | $15.76 | 4 | 6.1× |
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.