PSA population, Base print
Population data updated 2026-08-13. Pool: all grades ever assigned to this print.
Market prices by variant
| Variant | Graded | PSA 10 | Gem rate | Ungraded | Grade 9 | PSA 10 price |
|---|---|---|---|---|---|---|
| Base this page | 1,500 | 37 | 2.5% | $105.00 | $1,263 | $32,100 |
Graded figures are PriceCharting product prices; raw is the TCGplayer market where available. A variant with no product at the source shows no price rather than borrowing one.
Reading this card's numbers
Groudon ex from Nintendo Black Star Promos carries a population of 1,500 for the Base print, with 37 PSA 10s. A 2.5 percent gem rate makes the 10 a genuine lottery: most submissions of this card do not come back gem mint, and the PSA 10 price reflects that scarcity.
The market pays hard for the top grade here: the PSA 10 runs about 25.4x the grade 9 money. That premium is the entire grading thesis on this card, and it cuts both ways if fresh tens arrive. Population growth is running 62 percent over the trailing month, so the supply side is actively expanding.
Numbers on this page refresh with every data update. To see what a raw copy is worth submitting, open this card in the grading ROI calculator with its odds prefilled, or browse everything else Ryo Ueda has illustrated.