Should You Grade Metagross-GX #157 from Guardians Rising?
Free PSA grading EV calculator pre-loaded with live market data for Metagross-GX #157. Current PSA 10 gem rate is 45.3% based on 411 graded copies. PSA 10 sales average $388.57 vs a raw market of $22.30. Expected value of grading: $110.87 (120% ROI). Verdict: Grade It.
Guardians Rising · #157 · Rare Rainbow
Default-tier verdict
Grade It+$111 (+120% ROI)
Based on raw market $22.30, PSA 10 $388.57, gem rate 45.3% (411 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Metagross-GX #157 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 | 186 | 45.3% |
| PSA 9 | 141 | 34.3% |
| PSA 8 | 49 | 11.9% |
| PSA 7 | 12 | 2.9% |
