Is Zion Williamson [Purple Explosion] #17 worth grading?
Basketball · Basketball Cards 2020 Panini Hoops SLAM · full price guide →
Strong grading candidate — 5.3× premium in PSA 10
A PSA 10 Zion Williamson [Purple Explosion] #17 sells for $190 against $35.95 raw: a $155 spread, 5.3× the ungraded price. A PSA 9 ($55.50) 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)
- $35.95
- PSA 10
- $190
- PSA 9
- $55.50
- Gem premium
- 5.3×
- 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 | $190 | +$130 | +$105 | +$4.52 |
| PSA 9 | $55.50 | −$5.45 | −$30.45 | −$130 |
| PSA 8 | $29.99 | −$30.96 | −$55.96 | −$156 |
Net = sale price − $35.95 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% | $89.24 | +$3.29 |
| 50% | $123 | +$37.03 |
| 75% | $157 | +$70.78 |
Break-even gem rate at the standard fee: about 23%. 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 →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| BGS 10 | $248 | best | 55/45 | 70/30 |
| PSA 10 | $190 | −$57.53 | 55/45 | 75/25 |
| CGC 10 | $114 | −$134 | 55/45 | 75/25 |
| SGC 10 | $114 | −$134 | 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 Zion Williamson [Purple Explosion] #17 — FAQ
Is Zion Williamson [Purple Explosion] #17 worth grading?
A PSA 10 Zion Williamson [Purple Explosion] #17 sells for $190 against $35.95 raw: a $155 spread, 5.3× the ungraded price. A PSA 9 ($55.50) 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 Zion Williamson [Purple Explosion] #17 worth compared with raw?
A PSA 10 Zion Williamson [Purple Explosion] #17 (Basketball Cards 2020 Panini Hoops SLAM) sells for about $190 versus $35.95 for a raw near-mint copy — a 5.3× premium as of Sep 4, 2026.
Which grading company is best for Zion Williamson [Purple Explosion] #17?
By resale value, BGS 10 leads at $248, ahead of PSA 10 at $190. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Zion Williamson [Purple Explosion] #17 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 Zion Williamson [Purple Explosion] #17 break even?
At a standard ~$50 fee, submitting Zion Williamson [Purple Explosion] #17 breaks even when it gems about 23% of the time (a miss assumed to sell at the PSA 9 price of $55.50).
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