Should You Grade Tyranitar-GX #121 from Lost Thunder?
Free PSA grading EV calculator pre-loaded with live market data for Tyranitar-GX #121. Current PSA 10 gem rate is 44.5% based on 463 graded copies. PSA 10 sales average $309.86 vs a raw market of $12.00. Expected value of grading: $75.92 (93% ROI). Verdict: Grade It.
Lost Thunder · #121 · Rare Holo GX
Default-tier verdict
Grade It+$76 (+93% ROI)
Based on raw market $12.00, PSA 10 $309.86, gem rate 44.5% (463 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Tyranitar-GX #121 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 | 206 | 44.5% |
| PSA 9 | 195 | 42.1% |
| PSA 8 | 45 | 9.7% |
| PSA 7 | 9 | 1.9% |
