SV01: Scarlet & Violet Base Set Magnezone ex #226: PSA 9 vs PSA 10

SV01: Scarlet & Violet Base Set Magnezone ex #226 shows a modest premium between PSA 9 and PSA 10: a $16 dollar gap, with the gem mint multiplier at 1.9x. Based on a recent PSA 10 sale of $32.00 on May 27, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.

PSA 10

$33.50

Last sale $32.00 on May 27, 2026 UTC

PSA 9

$17.40

Last sale $17.40 on Apr 13, 2026 UTC

PSA 8

$11.50

Last sale $12.05 on May 2, 2025 UTC

The Spread

The PSA 9 to PSA 10 spread on Magnezone ex #226 SV01: Scarlet & Violet Base Set.

$16

Dollar gap, PSA 9 to PSA 10

1.9x

PSA 10 sells for 1.9x a PSA 9

Three-Outcome EV Calculator

PSA 9 acquisition cost ($)

PSA resub cost ($)

Probability of each outcome (must total 100%)

PSA 10 (upgrade) 15%

PSA 9 (regrade) 70%

PSA 8 (downgrade) 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

Math favors holding the 9

SV01: Scarlet & Violet Base Set #226 Magnezone ex released in 2023 sits in the vintage WOTC tier where gem-mint premiums above $16 are common. PSA 10 populations shrink faster than supply on cards of this era, which is why the upgrade arbitrage stays alive.

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