
Cornerstone Mask Ogerpon Ex #91
Pokemon Japanese Terastal Festival · #091 · Base · Dec 2024
No — Not Worth Grading
Should You Grade?
Raw Price
$1.25
Expected Value
$-6.52
Net Profit
$-6.25
Gem Rate
74.0%
ROI
-38%
Sales / Yr
57
Even a PSA 10 would lose $6.25 after the $15.00 grading cost and selling fees. The graded value doesn't justify the investment.
Best Tier for Flipping
Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.
Profitability by Grading Company
Shows the best-value tier from each grading company based on EV, cost, and turnaround. Pop = total graded population; 10s = grade 10 count.
Price by Grade
Raw
$1.25
BGS 10
$25.00
PSA 10
$19.38
SGC 10
$12.00
BGS 9.5
$11.00
9
$10.81
CGC 10
$10.00
74.0%Gem Rate (PSA 10)
Past month gem rate: 0.0%
⚠ Small sample size — gem rates based on only 38 graded cards may be unreliable.
Grade Distribution (38 total graded)
38Total
PSA 102873.7%
PSA 9821.1%
PSA 825.3%
