modern-to-grade · secret rare
Crystal Cave
Evolving Skies · #230 · English · released 2021
Raw market price
$4.68
7 days
▼ 6.4%
30 days
▼ 14.6%
90 days
▼ 11.8%
Graded prices & PSA population
| Grade | Market price | PSA population |
|---|---|---|
| PSA 10 | $60 | 159 |
| PSA 9 | $20 | 95 |
PSA population recorded 2026-07-20 · total graded 288
Why this card matters
pop
PSA 10 commands a 12× premium over raw, signaling real grading scarcity, but 169 active listings and only 3 PSA 10 comps make the thin graded sample fragile rather than definitively scarce.
demand
Crystal Cave is a Stadium utility card with no iconic Pokémon character anchor, limiting nostalgia and collector pull compared to alt-art creature cards from the same set.
artist
The secret-rare treatment gives it visual appeal above a standard print, but as a Stadium card it lacks the creature-focused alt-art illustration desirability that drives premium collector demand in Evolving Skies.
catalyst
A 12.4% 30-day momentum is a mild positive signal, but with only 3 PSA 10 sales underpinning it, the move is too small a sample to confirm a sustainable breakout rather than noise.
Graded comps on record
$75
CGC 10
$60
PSA 10
$20
PSA 9
$14
CGC 10
$9
CGC 8.5
$8
CGC 9
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More from Evolving Skies
Market data recorded recently from licensed market sources. MASTER records prices daily and never invents a number — estimated values are always labeled. Not financial advice.