Is Tim Duncan #18 worth grading?
Basketball · Basketball Cards 1997 Ultra Star Power Supreme · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Tim Duncan #18 sells for $3,369 against $358 raw: a $3,010 spread, 9.4× the ungraded price. Even a PSA 9 ($611) 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)
- $358
- PSA 10
- $3,369
- PSA 9
- $611
- Gem premium
- 9.4×
- As of
- Sep 4, 2026
Break-even by outcome and fee
| If it comes back… | Sells for | Economy / bulk (~$25.00) | Standard (~$50.00) | Express (~$150) |
|---|---|---|---|---|
| Gem — PSA 10 | $3,369 | +$2,985 | +$2,960 | +$2,860 |
| PSA 9 | $611 | +$228 | +$203 | +$103 |
| PSA 8 | $485 | +$102 | +$76.72 | −$23.28 |
Net = sale price − $358 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?
| Chance it gems | Expected sale | Expected net (standard fee) |
|---|---|---|
| 25% | $1,301 | +$892 |
| 50% | $1,990 | +$1,582 |
| 75% | $2,679 | +$2,271 |
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 →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| BGS 10 | $4,379 | best | 55/45 | 70/30 |
| PSA 10 | $3,369 | −$1,011 | 55/45 | 75/25 |
| CGC 10 | $2,021 | −$2,358 | 55/45 | 75/25 |
| SGC 10 | $2,021 | −$2,358 | 55/45 | 75/25 |
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.
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Grading Tim Duncan #18 — FAQ
Is Tim Duncan #18 worth grading?
A PSA 10 Tim Duncan #18 sells for $3,369 against $358 raw: a $3,010 spread, 9.4× the ungraded price. Even a PSA 9 ($611) 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 #18 worth compared with raw?
A PSA 10 Tim Duncan #18 (Basketball Cards 1997 Ultra Star Power Supreme) sells for about $3,369 versus $358 for a raw near-mint copy — a 9.4× premium as of Sep 4, 2026.
Which grading company is best for Tim Duncan #18?
By resale value, BGS 10 leads at $4,379, ahead of PSA 10 at $3,369. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Tim Duncan #18 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.
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