SV: Prismatic Evolutions Iron Hands ex 31/131: PSA 9 vs PSA 10
SV: Prismatic Evolutions Iron Hands ex 31/131 shows a modest premium between PSA 9 and PSA 10: an $8 dollar gap, with the gem mint multiplier at 1.6x. Based on the last tracked PSA 10 sale of $22.50 on Mar 22, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$22.50
Last sale $22.50 on
PSA 9
$14.40
Last sale $14.40 on
PSA 8
$12.50
Last sale $12.50 on
The Spread
The PSA 9 to PSA 10 spread on Iron Hands ex 31/131 (SV: Prismatic Evolutions).
$8
Dollar gap, PSA 9 to PSA 10
1.6x
PSA 10 sells for 1.6x a PSA 9
Three-Outcome EV Calculator
15%
70%
15%
Defaults are conservative starting points. Adjust based on the specific slab. A borderline 9 with strong centering plays differently than a 9 with edge wear.
PSA 10 outcome (sale price minus resub minus acquisition)
$0
PSA 9 outcome (regrade, no upgrade)
$0
PSA 8 outcome (downgrade, slower sell, tied capital)
$0
Expected Value
$0
Math favors holding the 9
Where this card lands in the broader SV: Prismatic Evolutions picture: a modern-era card carrying an $8 gap between PSA 9 and PSA 10, a 1.6x multiple on the PSA 9 price.
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