Should you grade Magnezone EX #101?

Borderline

+$407.28

net at PSA 10, but the gem rate is 2.8% — profitable only if it gems

The ledger

Raw card$12.00
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$79.01
PSA 10 sale$593.28
Net at PSA 10+$407.28
Net if it grades PSA 9 instead$-42.34

2.8% of the 281 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.