Should You Grade Zekrom-GX #SM138 from SM Black Star Promos?
Free PSA grading EV calculator pre-loaded with live market data for Zekrom-GX #SM138. Current PSA 10 gem rate is 5.8% based on 103 graded copies. PSA 10 sales average $79.00 vs a raw market of $19.91. Expected value of grading: $-45.44 (-51% ROI). Verdict: Sell raw.
SM Black Star Promos · #SM138 · Promo
Default-tier verdict
Sell raw$-45 (-51% ROI)
Based on raw market $19.91, PSA 10 $79.00, gem rate 5.8% (103 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Zekrom-GX #SM138 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 | 5.8% |
| PSA 9 | 40 | 38.8% |
| PSA 8 | 37 | 35.9% |
| PSA 7 | 10 | 9.7% |
