MidpointCard Centering Grading Portfolio App
David Robinson #336 (Basketball Cards 1993 Skybox Premium) — is it worth grading?

Is David Robinson #336 worth grading?

Basketball · Basketball Cards 1993 Skybox Premium · full price guide →

Strong grading candidate — 55× premium in PSA 10

A PSA 10 David Robinson #336 sells for $84.91 against $1.53 raw: a $83.38 spread, 55× the ungraded price. A PSA 9 ($22.48) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

Raw (NM)
$1.53
PSA 10
$84.91
PSA 9
$22.48
Gem premium
55×
As of
Sep 4, 2026

Break-even by outcome and fee

David Robinson #336: 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$84.91+$58.38+$33.38−$66.62
PSA 9$22.48−$4.05−$29.05−$129
PSA 8$17.45−$9.08−$34.08−$134

Net = sale price − $1.53 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?

David Robinson #336: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$38.09−$13.44
50%$53.70+$2.16
75%$69.30+$17.77

Break-even gem rate at the standard fee: about 47%. Centering is the usual reason a clean copy misses — measure it before you decide.

Which grader pays the most — and what a 10 takes

All centering standards →
David Robinson #336: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$110best55/4570/30
PSA 10$84.91−$25.0955/4575/25
CGC 10$51.00−$59.0055/4575/25
SGC 10$51.00−$59.0055/4575/25

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.

David Robinson #336 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$84.91$51.00$110$51.00—
9.5————$34.85
9————$22.48
8————$17.45
7————$3.25

Swipe the table for the other grading companies →

Run your own numbers

Should I pay this?

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

Other 1993 Skybox Premium cards worth checking

Full set checklist →

Grading David Robinson #336 — FAQ

Is David Robinson #336 worth grading?

A PSA 10 David Robinson #336 sells for $84.91 against $1.53 raw: a $83.38 spread, 55× the ungraded price. A PSA 9 ($22.48) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

How much is a PSA 10 David Robinson #336 worth compared with raw?

A PSA 10 David Robinson #336 (Basketball Cards 1993 Skybox Premium) sells for about $84.91 versus $1.53 for a raw near-mint copy — a 55× premium as of Sep 4, 2026.

Which grading company is best for David Robinson #336?

By resale value, BGS 10 leads at $110, ahead of PSA 10 at $84.91. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does David Robinson #336 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.

What gem rate makes grading David Robinson #336 break even?

At a standard ~$50 fee, submitting David Robinson #336 breaks even when it gems about 47% of the time (a miss assumed to sell at the PSA 9 price of $22.48).

Best on iPhone & Android

Check your basketball card in the Midpoint app

Scan with your camera to measure centering to the millimeter, get an AI grade with corner and edge close-ups, see what your copy is worth, and track it in your portfolio. Free to start.

Download on the App StoreGet it on Google Play

Or try it on the web →

Best on iPhone & Android

The full Midpoint experience is in the app

Scan with your camera, get AI grades with corner and edge close-ups, issue Grade Certificates, set price alerts, track your portfolio and talk to other collectors — everything here, plus the parts a browser can't do. Free to start.

Download on the App StoreGet it on Google Play