Midpoint - Card Centering Tool
Tim Duncan [Gold Medallion] #131G (Basketball Cards 1997 Ultra) — is it worth grading?

Is Tim Duncan [Gold Medallion] #131G worth grading?

Basketball · Basketball Cards 1997 Ultra · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Tim Duncan [Gold Medallion] #131G sells for $1,541 against $36.87 raw: a $1,504 spread, 42× the ungraded price. Even a PSA 9 ($187) 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)
$36.87
PSA 10
$1,541
PSA 9
$187
Gem premium
42×
As of
Jul 11, 2026

Break-even by outcome and fee

Tim Duncan [Gold Medallion] #131G: 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$1,541+$1,479+$1,454+$1,354
PSA 9$187+$125+$100+$0.20
PSA 8$65.51+$3.64−$21.36−$121

Net = sale price − $36.87 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?

Tim Duncan [Gold Medallion] #131G: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$525+$439
50%$864+$777
75%$1,202+$1,115

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
Tim Duncan [Gold Medallion] #131G: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$2,003best55/4570/30
PSA 10$1,541−$46255/4575/25
CGC 10$924−$1,07955/4575/25
SGC 10$924−$1,07955/4575/25

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.

Tim Duncan [Gold Medallion] #131G graded prices by company and grade
GradePSACGCBGSSGCGraded
10$1,541$924$2,003$924
9.5$303
9$187
8$65.51
7$47.97

Run your own numbers

Should I pay this?

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

Other 1997 Ultra cards worth checking

Full set checklist

Grading Tim Duncan [Gold Medallion] #131G — FAQ

Is Tim Duncan [Gold Medallion] #131G worth grading?

A PSA 10 Tim Duncan [Gold Medallion] #131G sells for $1,541 against $36.87 raw: a $1,504 spread, 42× the ungraded price. Even a PSA 9 ($187) 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 Tim Duncan [Gold Medallion] #131G worth compared with raw?

A PSA 10 Tim Duncan [Gold Medallion] #131G (Basketball Cards 1997 Ultra) sells for about $1,541 versus $36.87 for a raw near-mint copy — a 42× premium as of Jul 11, 2026.

Which grading company is best for Tim Duncan [Gold Medallion] #131G?

By resale value, BGS 10 leads at $2,003, ahead of PSA 10 at $1,541. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Tim Duncan [Gold Medallion] #131G 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 basketball 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