Midpoint - Card Centering Tool

Is Jim Plunkett #321 worth grading?

Football · Football Cards 1975 Topps · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Jim Plunkett #321 sells for $184 against $1.50 raw: a $183 spread, 123× the ungraded price. Even a PSA 9 ($59.95) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

Raw (NM)
$1.50
PSA 10
$184
PSA 9
$59.95
Gem premium
123×
As of
Jul 11, 2026

Break-even by outcome and fee

Jim Plunkett #321: net result of grading versus selling raw, by outcome and fee tier
If it comes back…Sells forEconomy / bulk (~$25.00)Standard (~$50.00)Express (~$150)
Gem — PSA 10$184+$158+$133+$32.98
PSA 9$59.95+$33.45+$8.45−$91.55
PSA 8$15.40−$11.10−$36.10−$136

Net = sale price − $1.50 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.

Expected value — how often does it need to gem?

Jim Plunkett #321: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$91.08+$39.58
50%$122+$70.72
75%$153+$102

Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.

Which grader pays the most — and what a 10 takes

All centering standards
Jim Plunkett #321: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$240best55/4570/30
PSA 10$184−$55.5255/4575/25
CGC 10$111−$12955/4575/25
SGC 10$111−$12955/4575/25

Tolerances are each company's published centering standard for its top grade; surface, corners and edges must also be clean. Centering is the one you can measure yourself before you pay.

Jim Plunkett #321 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$184$111$240$111
9.5$61.68
9$59.95
8$15.40
7$12.00

Run your own numbers

Should I pay this?

Enter the seller’s asking price to see your net outcome per grade.

Other 1975 Topps cards worth checking

Full set checklist

Grading Jim Plunkett #321 — FAQ

Is Jim Plunkett #321 worth grading?

A PSA 10 Jim Plunkett #321 sells for $184 against $1.50 raw: a $183 spread, 123× the ungraded price. Even a PSA 9 ($59.95) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

How much is a PSA 10 Jim Plunkett #321 worth compared with raw?

A PSA 10 Jim Plunkett #321 (Football Cards 1975 Topps) sells for about $184 versus $1.50 for a raw near-mint copy — a 123× premium as of Jul 11, 2026.

Which grading company is best for Jim Plunkett #321?

By resale value, BGS 10 leads at $240, ahead of PSA 10 at $184. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Jim Plunkett #321 need for a BGS 10?

BGS publishes 55/45 front and 70/30 back centering as the tolerance for a 10 (Gem Mint). Off-center copies are capped below the top grade regardless of surface — measure yours before paying the fee.

Is your football card centered well enough to grade?

Centering makes or breaks a PSA 10. Scan any card with Midpoint to measure its exact centering, get a grade estimate, and see what your copy is actually worth.

Check my card free