Graded Market · 32 completed sales
Kingdra GX - SM155 graded prices.
As of August 20, 2026, Kingdra GX - SM155 (SM Black Star Promos #SM155) in PSA 10 sells for a median of $155.00, based on 32 real eBay completed sales; the raw copy’s reference price is $42.50 — a 3.6× grading premium at the top grade.
Across SM Black Star Promos, PSA 10 copies sell for 34.1× their raw reference price on average (99 cards, 6,076 PSA 10 completed sales tracked).
PSA · Kingdra GX - SM155
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $155.00 | 19 | 3.6× |
| Mint 9 | $38.00 | 9 | 0.9× |
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.