Graded Market · 54 completed sales
Blastoise EX - XY30 graded prices.
As of August 21, 2026, Blastoise EX - XY30 (XY Black Star Promos #XY30) in PSA 10 sells for a median of $284.99, based on 54 real eBay completed sales; the raw copy’s reference price is $10.95 — a 26.0× grading premium at the top grade.
Across XY Black Star Promos, PSA 10 copies sell for 60.0× their raw reference price on average (52 cards, 912 PSA 10 completed sales tracked).
PSA · Blastoise EX - XY30
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $284.99 | 11 | 26.0× |
| Mint 9 | $40.50 | 13 | 3.7× |
| NM-MT 8 | $31.00 | 8 | 2.8× |
| NM 7 | $16.51 | 11 | 1.5× |
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.