Should You Grade Mew #8 from Wizards Black Star Promos?
Free PSA grading EV calculator pre-loaded with live market data for Mew #8. Current PSA 10 gem rate is 33.8% based on 10,212 graded copies. PSA 10 sales average $468.99 vs a raw market of $9.12. Expected value of grading: $97.36 (123% ROI). Verdict: Grade It.
Wizards Black Star Promos · #8 · Promo
Default-tier verdict
Grade It+$97 (+123% ROI)
Based on raw market $9.12, PSA 10 $468.99, gem rate 33.8% (10,212 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Mew #8 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 | 3,449 | 33.8% |
| PSA 9 | 5,884 | 57.6% |
| PSA 8 | 1 | 0.0% |
| PSA 7 | 2 | 0.0% |
