Should you grade Regirock #28?

Borderline

+$811.44

net at PSA 10, but the gem rate is 33.3% — profitable only if it gems

The ledger

Raw card$4.05
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$139.53
PSA 10 sale$1050.00
Net at PSA 10+$811.44
Net if it grades PSA 9 instead$-47.05

33.3% of the 36 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.