Should you grade Porygon2 #12?

Borderline

+$462.95

net at PSA 10, but the gem rate is 6.1% — profitable only if it gems

The ledger

Raw card$20.00
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$88.73
PSA 10 sale$666.67
Net at PSA 10+$462.95
Net if it grades PSA 9 instead$-29.23

6.1% of the 163 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.