Should You Grade Cobalion-EX #133 from Plasma Storm?
Free PSA grading EV calculator pre-loaded with live market data for Cobalion-EX #133. Current PSA 10 gem rate is 1.7% based on 361 graded copies. PSA 10 sales average $750.00 vs a raw market of $28.46. Expected value of grading: $66.40 (67% ROI). Verdict: Grade It.
Plasma Storm · #133 · Rare Ultra
Default-tier verdict
Grade It+$66 (+67% ROI)
Based on raw market $28.46, PSA 10 $750.00, gem rate 1.7% (361 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Cobalion-EX #133 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 | 6 | 1.7% |
| PSA 9 | 97 | 26.9% |
| PSA 8 | 166 | 46.0% |
| PSA 7 | 63 | 17.5% |
