Should you grade Diglett #50?

Borderline

+$171.63

net at PSA 10, but the gem rate is 17.9% — profitable only if it gems

The ledger

Raw card$2.99
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$41.64
PSA 10 sale$311.25
Net at PSA 10+$171.63
Net if it grades PSA 9 instead$-69.47

17.9% of the 28 copies PSA has graded came back a 10. Pop gem rates are a ceiling — centering and surface on your copy decide.

Prices from real completed sales, updated daily. Population data from PSA's public population report.