Should You Grade Steven's Metagross ex #289 from Ascended Heroes?
Free PSA grading EV calculator pre-loaded with live market data for Steven's Metagross ex #289. Current PSA 10 gem rate is 62.1% based on 1,076 graded copies. PSA 10 sales average $173.50 vs a raw market of $57.00. Expected value of grading: $4.68 (4% ROI). Verdict: Sell raw.
Ascended Heroes · #289 · Special Illustration Rare
Default-tier verdict
Sell raw+$5 (+4% ROI)
Based on raw market $57.00, PSA 10 $173.50, gem rate 62.1% (1,076 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Steven's Metagross ex #289 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 | 668 | 62.1% |
| PSA 9 | 342 | 31.8% |
| PSA 8 | 57 | 5.3% |
| PSA 7 | 4 | 0.4% |
