SV01: Scarlet & Violet Base Set Mabosstiff 218/198: PSA 9 vs PSA 10
On SV01: Scarlet & Violet Base Set Mabosstiff 218/198, PSA 10 sells for 6.6x a PSA 9, a $127 delta, which is an unusually wide gem-mint premium. Based on the most recent PSA 10 sale of $200.00 on May 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
$149.03
Last sale $200.00 on
PSA 9
$22.50
Last sale $25.00 on
PSA 8
$8.25
Last sale $11.00 on
The Spread
The PSA 9 to PSA 10 spread on Mabosstiff 218/198 (SV01: Scarlet & Violet Base Set).
$127
Dollar gap, PSA 9 to PSA 10
6.6x
PSA 10 sells for 6.6x 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
SV01: Scarlet & Violet Base Set 218/198 Mabosstiff is a modern-era release from 2023. The gap between its PSA 9 and PSA 10 prices is $127.
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