Should You Grade Groudon ex #2 from Nintendo Black Star Promos?
Free PSA grading EV calculator pre-loaded with live market data for Groudon ex #2. Current PSA 10 gem rate is 3.1% based on 1,179 graded copies. PSA 10 sales average $502.97 vs a raw market of $29.96. Expected value of grading: $76.42 (76% ROI). Verdict: Grade It.
Nintendo Black Star Promos · #2 · Promo
Default-tier verdict
Grade It+$76 (+76% ROI)
Based on raw market $29.96, PSA 10 $502.97, gem rate 3.1% (1,179 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Groudon ex #2 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 | 36 | 3.1% |
| PSA 9 | 191 | 16.2% |
| PSA 8 | 242 | 20.5% |
| PSA 7 | 194 | 16.5% |
