Is Alonzo Mourning Refractor #24 worth grading?
Basketball · Basketball Cards 1997 Topps Chrome Season's Best · full price guide →
Strong grading candidate — 32× premium in PSA 10
A PSA 10 Alonzo Mourning Refractor #24 sells for $150 against $4.63 raw: a $145 spread, 32× the ungraded price. A PSA 9 ($19.24) 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)
- $4.63
- PSA 10
- $150
- PSA 9
- $19.24
- Gem premium
- 32×
- As of
- Jul 11, 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 | $150 | +$120 | +$94.87 | −$5.13 |
| PSA 9 | $19.24 | −$10.39 | −$35.39 | −$135 |
| PSA 8 | $15.17 | −$14.46 | −$39.46 | −$139 |
Net = sale price − $4.63 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% | $51.80 | −$2.83 |
| 50% | $84.37 | +$29.74 |
| 75% | $117 | +$62.31 |
Break-even gem rate at the standard fee: about 27%. 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 | $194 | best | 55/45 | 70/30 |
| PSA 10 | $150 | −$44.50 | 55/45 | 75/25 |
| CGC 10 | $90.00 | −$104 | 55/45 | 75/25 |
| SGC 10 | $90.00 | −$104 | 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 →| Grade | PSA | CGC | BGS | SGC | Graded |
|---|---|---|---|---|---|
| 10 | $150 | $90.00 | $194 | $90.00 | — |
| 9.5 | — | — | — | — | $52.82 |
| 9 | — | — | — | — | $19.24 |
| 8 | — | — | — | — | $15.17 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
Other 1997 Topps Chrome Season's Best cards worth checking
Full set checklist →
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![Allen Iverson [Refractor] #26 1997 Topps Chrome Season's Best card](https://i.ebayimg.com/images/g/Y8MAAeSwzoRpFPid/s-l500.jpg)
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Grading Alonzo Mourning Refractor #24 — FAQ
Is Alonzo Mourning Refractor #24 worth grading?
A PSA 10 Alonzo Mourning Refractor #24 sells for $150 against $4.63 raw: a $145 spread, 32× the ungraded price. A PSA 9 ($19.24) 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 Alonzo Mourning Refractor #24 worth compared with raw?
A PSA 10 Alonzo Mourning Refractor #24 (Basketball Cards 1997 Topps Chrome Season's Best) sells for about $150 versus $4.63 for a raw near-mint copy — a 32× premium as of Jul 11, 2026.
Which grading company is best for Alonzo Mourning Refractor #24?
By resale value, BGS 10 leads at $194, ahead of PSA 10 at $150. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Alonzo Mourning Refractor #24 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 Alonzo Mourning Refractor #24 break even?
At a standard ~$50 fee, submitting Alonzo Mourning Refractor #24 breaks even when it gems about 27% of the time (a miss assumed to sell at the PSA 9 price of $19.24).
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.
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