Should You Grade Zapdos #23 from Wizards Black Star Promos?
Free PSA grading EV calculator pre-loaded with live market data for Zapdos #23. Current PSA 10 gem rate is 55.2% based on 5,688 graded copies. PSA 10 sales average $228.75 vs a raw market of $16.25. Expected value of grading: $60.18 (70% ROI). Verdict: Grade It.
Wizards Black Star Promos · #23 · Promo
Default-tier verdict
Grade It+$60 (+70% ROI)
Based on raw market $16.25, PSA 10 $228.75, gem rate 55.2% (5,688 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Zapdos #23 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 | 3,140 | 55.2% |
| PSA 9 | 1,458 | 25.6% |
| PSA 8 | 422 | 7.4% |
| PSA 7 | 207 | 3.6% |
