Graded Market · 17 completed sales
Cornerstone Mask Ogerpon ex - 199/167 graded prices.
As of August 21, 2026, Cornerstone Mask Ogerpon ex - 199/167 (Twilight Masquerade #199) in PSA 10 sells for a median of $59.99, based on 17 real eBay completed sales; the raw copy’s reference price is $3.65 — a 16.4× grading premium at the top grade.
Across Twilight Masquerade, PSA 10 copies sell for 10.4× their raw reference price on average (68 cards, 4,879 PSA 10 completed sales tracked).
PSA · Cornerstone Mask Ogerpon ex - 199/167
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $59.99 | 3 | 16.4× |
| Mint 9 | $14.75 | 8 | 4.0× |
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.