Should You Grade Mewtwo #12 from Detective Pikachu?
Free PSA grading EV calculator pre-loaded with live market data for Mewtwo #12. Current PSA 10 gem rate is 24.3% based on 1,033 graded copies. PSA 10 sales average $455.00 vs a raw market of $8.41. Expected value of grading: $56.94 (73% ROI). Verdict: Grade It.
Detective Pikachu · #12 · Rare Ultra
Default-tier verdict
Grade It+$57 (+73% ROI)
Based on raw market $8.41, PSA 10 $455.00, gem rate 24.3% (1,033 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Mewtwo #12 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 | 251 | 24.3% |
| PSA 9 | 580 | 56.1% |
| PSA 8 | 163 | 15.8% |
| PSA 7 | 31 | 3.0% |
