Should you grade Poliwhirl #37?

Borderline

+$98.32

net at PSA 10, but the gem rate is 15.4% — profitable only if it gems

The ledger

Raw card$3.65
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$30.54
PSA 10 sale$227.50
Net at PSA 10+$98.32
Net if it grades PSA 9 instead$-8.96

15.4% of the 39 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.