Should You Grade Cloyster #42 from Expedition Base Set?
Free PSA grading EV calculator pre-loaded with live market data for Cloyster #42. Current PSA 10 gem rate is 40.0% based on 145 graded copies. PSA 10 sales average $120.73 vs a raw market of $15.93. Expected value of grading: $-20.15 (-23% ROI). Verdict: Sell raw.
Expedition Base Set · #42 · Rare
Default-tier verdict
Sell raw$-20 (-23% ROI)
Based on raw market $15.93, PSA 10 $120.73, gem rate 40.0% (145 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Cloyster #42 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 | 58 | 40.0% |
| PSA 9 | 53 | 36.6% |
| PSA 8 | 20 | 13.8% |
| PSA 7 | 8 | 5.5% |
