SV: Prismatic Evolutions Sylveon ex #156: PSA 9 vs PSA 10

The PSA 10 to PSA 9 spread on SV: Prismatic Evolutions Sylveon ex #156 is a wide gem-mint premium: $1,253, with PSA 10 copies trading at 4x a PSA 9. Based on a recent PSA 10 sale of $1,700.00 on May 27, 2026, the crack-and-resub math favors the resub: expected value is positive even at a conservative 15% upgrade probability.

PSA 10

$1,675.57

Last sale $1,700.00 on May 27, 2026 UTC

PSA 9

$422.73

Last sale $444.48 on May 30, 2026 UTC

PSA 8

$360.14

Last sale $345.00 on May 27, 2026 UTC

The Spread

The PSA 9 to PSA 10 spread on Sylveon ex #156 SV: Prismatic Evolutions.

$1,253

Dollar gap, PSA 9 to PSA 10

PSA 10 sells for 4x 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

SV: Prismatic Evolutions #156 Sylveon ex released in 2025 sits in the vintage WOTC tier where gem-mint premiums above $1,253 are common. PSA 10 populations shrink faster than supply on cards of this era, which is why the upgrade arbitrage stays alive.

More Sylveon Comparisons

Other SV: Prismatic Evolutions Heavy Hitters

Track every grade tier. Spot every gap.

Real PSA prices across every grade tier. Founding member rate $3.99/mo locked forever. First 100 only.

Claim founding member rate

First 100 only. Founding member rate $3.99/mo locked forever.