Should you grade Brock's Onix #21?
Borderline
+$78.93
net at PSA 10, but the gem rate is 17.7% — profitable only if it gems
The ledger
Raw card$8.50
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$28.32
PSA 10 sale$210.74
Net at PSA 10+$78.93
Net if it grades PSA 9 instead$-84.70
17.7% of the 124 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.
