Is it worth grading Cloyster #8 from Expedition Base Set?

It depends on condition and market pricing. Current PSA 10 gem rate is 4.3% (based on 908 graded copies). PSA 10 sales average $3000.00 versus a raw market of $76.17. Use the calculator on this page to compute exact EV for your card's condition.

What is the PSA 10 gem rate for Cloyster #8?

4.3% (based on 908 graded copies)

What does PSA grading cost?

PSA service levels range from $59.99 per card (Standard, 90-100 business days) to $9,999+ (Premium 10, for cards worth $250,001+). If a graded card is worth more than its tier's Max Insured Value, PSA upgrades it to the tier that covers it and bills the difference.

Should You Grade Cloyster #8 (Expedition Base Set)? PSA Grading EV

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Should You Grade Cloyster?

Expedition Base Set · #8 · Rare Holo

Default-tier verdict

Sell raw+$33 (+8% ROI)

Based on raw market $76.17, PSA 10 $3000.00, gem rate 4.3% (908 graded). Adjust inputs below for your card's exact condition.

Cloyster

Expedition Base Set · #8 · Rare Holo

Market: $76.17

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PSA Pop · 908 graded

PSA 10

4.3%

PSA 9

29.0%

PSA 8

32.8%

PSA 7

15.3%

Your Costs

Raw card cost

Grading tier

Shipping estimate + Other fees

Expected Sale Prices

PSA 10

PSA 9

PSA 8

PSA 7

Card Condition

Centering

Edges & Corners

Surface

Fine-tune your gem-rate odds based on centering, edges, and surface condition.

Expected Value

⚠If graded PSA 10, PSA will upcharge to Super Express ($349) — your PSA 10 value of $3000 exceeds this tier's $1,000 cap. No upcharge on PSA 9.

PSA 10: 4.3% × $3000.00+$128.85

PSA 9: 29.0% × $587.92+$170.29

PSA 8: 32.8% × $395.21+$129.71

PSA 7: 15.3% × $162.61+$24.89

Below 7: 18.6% × raw+$14.18

Raw card cost-$76.17

Standard grading (weighted avg)-$72.40

Shipping + Other Fees-$10.00

EV+$309.35(+195% ROI)

Grade It

195% ROI — strong margin absorbs selling fees and price swings.

Want to track this card's price and grading data?

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195% ROI — strong margin absorbs selling fees and price swings.

About this calculator

This page computes the expected value (EV) of submitting Cloyster #8 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	39	4.3%
PSA 9	263	29.0%
PSA 8	298	32.8%
PSA 7	139	15.3%

Should You Grade Cloyster #8 from Expedition Base Set?

Cloyster

Your Costs

Expected Sale Prices

Card Condition

Expected Value

About this calculator

PSA population summary

Cloyster

Your Costs

Expected Sale Prices

Card Condition

Expected Value