Is Tim Duncan [Green Shimmer Prizm] #30 worth grading?
Basketball · Basketball Cards 2020 Panini Prizm · full price guide →
Grading rarely pays for this card
PSA 10 copies of Tim Duncan [Green Shimmer Prizm] #30 sell for $411, only $0.00 above the $4,995 raw price — less than an economy-tier grading fee. A PSA 9 ($150) sells for less than raw, so anything short of a 10 loses money. Keep it raw unless you are grading for the slab itself.
- Raw (NM)
- $4,995
- PSA 10
- $411
- PSA 9
- $150
- Gem premium
- 0.1×
- As of
- Sep 3, 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 | $411 | −$4,609 | −$4,634 | −$4,734 |
| PSA 9 | $150 | −$4,870 | −$4,895 | −$4,995 |
Net = sale price − $4,995 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% | $215 | −$4,830 |
| 50% | $281 | −$4,765 |
| 75% | $346 | −$4,699 |
At the standard fee this submission does not break even at any realistic gem rate unless the miss lands above the 9 price.
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 | $534 | best | 55/45 | 70/30 |
| PSA 10 | $411 | −$123 | 55/45 | 75/25 |
| CGC 10 | $247 | −$287 | 55/45 | 75/25 |
| SGC 10 | $247 | −$287 | 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.
Full grade ladder
Raw conditions & history →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 2020 Panini Prizm cards worth checking
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![Anthony Edwards [Blue Prizm] #258 2020 Panini Prizm card](https://i.ebayimg.com/images/g/8-AAAeSwjadqoZcz/s-l500.jpg)
![Anthony Edwards [Blue Ice Prizm] #258 2020 Panini Prizm card](https://i.ebayimg.com/images/g/nfUAAeSwedhoe6un/s-l500.jpg)
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Grading Tim Duncan [Green Shimmer Prizm] #30 — FAQ
Is Tim Duncan [Green Shimmer Prizm] #30 worth grading?
PSA 10 copies of Tim Duncan [Green Shimmer Prizm] #30 sell for $411, only $0.00 above the $4,995 raw price — less than an economy-tier grading fee. A PSA 9 ($150) sells for less than raw, so anything short of a 10 loses money. Keep it raw unless you are grading for the slab itself.
How much is a PSA 10 Tim Duncan [Green Shimmer Prizm] #30 worth compared with raw?
A PSA 10 Tim Duncan [Green Shimmer Prizm] #30 (Basketball Cards 2020 Panini Prizm) sells for about $411 versus $4,995 for a raw near-mint copy — a 0.1× premium as of Sep 3, 2026.
Which grading company is best for Tim Duncan [Green Shimmer Prizm] #30?
By resale value, BGS 10 leads at $534, ahead of PSA 10 at $411. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Tim Duncan [Green Shimmer Prizm] #30 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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