Should You Grade Cornerstone Mask Ogerpon ex #215 from Twilight Masquerade?
Free PSA grading EV calculator pre-loaded with live market data for Cornerstone Mask Ogerpon ex #215. Current PSA 10 gem rate is 50.4% based on 1,028 graded copies. PSA 10 sales average $91.60 vs a raw market of $11.44. Expected value of grading: $-21.91 (-27% ROI). Verdict: Sell raw.
Twilight Masquerade · #215 · Special Illustration Rare
Default-tier verdict
Sell raw$-22 (-27% ROI)
Based on raw market $11.44, PSA 10 $91.60, gem rate 50.4% (1,028 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Cornerstone Mask Ogerpon ex #215 to PSA for grading. EV factors in real PSA population data (gem rates), live market prices for raw and graded copies, and PSA's tiered fee structure including upcharges when a card's graded value exceeds the tier's Max Insured Value. Adjust the inputs to match your card's exact condition for a personalized recommendation.
PSA population summary
| Grade | Population | Rate |
|---|---|---|
| PSA 10 | 518 | 50.4% |
| PSA 9 | 404 | 39.3% |
| PSA 8 | 80 | 7.8% |
| PSA 7 | 19 | 1.8% |
