Is it worth grading Mew #55 from Expedition Base Set?

It depends on condition and market pricing. Current PSA 10 gem rate is 29.8% (based on 621 graded copies). PSA 10 sales average $2352.50 versus a raw market of $107.50. Use the calculator on this page to compute exact EV for your card's condition.

What is the PSA 10 gem rate for Mew #55?

29.8% (based on 621 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 Mew #55 (Expedition Base Set)? PSA Grading EV

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Should You Grade Mew?

Expedition Base Set · #55 · Rare

Default-tier verdict

Grade It+$552 (+174% ROI)

Based on raw market $107.50, PSA 10 $2352.50, gem rate 29.8% (621 graded). Adjust inputs below for your card's exact condition.

Mew

Expedition Base Set · #55 · Rare

Market: $107.50

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PSA Pop · 621 graded

PSA 10

29.8%

PSA 9

28.5%

PSA 8

17.4%

PSA 7

10.8%

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 Express ($199) — your PSA 10 value of $2353 exceeds this tier's $1,000 cap. No upcharge on PSA 9.

PSA 10: 29.8% × $2352.50+$700.83

PSA 9: 28.5% × $370.85+$105.70

PSA 8: 17.4% × $168.50+$29.30

PSA 7: 10.8% × $165.00+$17.80

Below 7: 13.5% × raw+$14.54

Raw card cost-$107.50

Standard grading (weighted avg)-$101.40

Shipping + Other Fees-$10.00

EV+$649.27(+297% ROI)

Grade It

297% ROI — strong margin absorbs selling fees and price swings.

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

Grade It

297% ROI — strong margin absorbs selling fees and price swings.

About this calculator

This page computes the expected value (EV) of submitting Mew #55 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	185	29.8%
PSA 9	177	28.5%
PSA 8	108	17.4%
PSA 7	67	10.8%

Should You Grade Mew #55 from Expedition Base Set?

Mew

Your Costs

Expected Sale Prices

Card Condition

Expected Value

About this calculator

PSA population summary

Mew

Your Costs

Expected Sale Prices

Card Condition

Expected Value