Should You Grade Metagross-GX #139 from Guardians Rising?
Free PSA grading EV calculator pre-loaded with live market data for Metagross-GX #139. Current PSA 10 gem rate is 46.6% based on 373 graded copies. PSA 10 sales average $265.00 vs a raw market of $14.36. Expected value of grading: $65.10 (77% ROI). Verdict: Grade It.
Guardians Rising · #139 · Rare Ultra
Default-tier verdict
Grade It+$65 (+77% ROI)
Based on raw market $14.36, PSA 10 $265.00, gem rate 46.6% (373 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Metagross-GX #139 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 | 174 | 46.6% |
| PSA 9 | 143 | 38.3% |
| PSA 8 | 35 | 9.4% |
| PSA 7 | 14 | 3.8% |
