Base Set Diglett #47: PSA 9 vs PSA 10
On Base Set Diglett #47, the PSA 10 premium is a meaningful PSA 10 premium: PSA 10 sells for 2.5x a PSA 9, a $69 delta. Based on a recent PSA 10 sale of $107.53 on May 30, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$115.43
Last sale $107.53 on
PSA 9
$46.08
Last sale $38.00 on
PSA 8
$27.55
Last sale $23.18 on
The Spread
The PSA 9 to PSA 10 spread on Diglett #47 Base Set.
$69
Dollar gap, PSA 9 to PSA 10
2.5x
PSA 10 sells for 2.5x 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 Base Set picture: a non-holo with a $69 gap between PSA 9 and PSA 10. The PSA 9 to PSA 10 jump on WOTC-era cards reflects population scarcity at the top grade, not raw print run.
More Diglett Comparisons
Other Base Set 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 rateFirst 100 only. Founding member rate $3.99/mo locked forever.