Is Coby Mayo [Gold] #20 worth grading?
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Strong grading candidate — 5.4× premium in PSA 10
A PSA 10 Coby Mayo [Gold] #20 sells for $53.13 against $9.79 raw: a $43.34 spread, 5.4× the ungraded price. A PSA 9 ($21.00) 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)
- $9.79
- PSA 10
- $53.13
- PSA 9
- $21.00
- Gem premium
- 5.4×
- As of
- Sep 2, 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 | $53.13 | +$18.34 | −$6.66 | −$107 |
| PSA 9 | $21.00 | −$13.79 | −$38.79 | −$139 |
| PSA 8 | $19.44 | −$15.35 | −$40.35 | −$140 |
Net = sale price − $9.79 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% | $29.03 | −$30.76 |
| 50% | $37.06 | −$22.73 |
| 75% | $45.10 | −$14.69 |
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 | $69.00 | best | 55/45 | 70/30 |
| PSA 10 | $53.13 | −$15.87 | 55/45 | 75/25 |
| SGC 10 | $49.99 | −$19.01 | 55/45 | 75/25 |
| CGC 10 | $32.00 | −$37.00 | 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 Coby Mayo [Gold] #20 — FAQ
Is Coby Mayo [Gold] #20 worth grading?
A PSA 10 Coby Mayo [Gold] #20 sells for $53.13 against $9.79 raw: a $43.34 spread, 5.4× the ungraded price. A PSA 9 ($21.00) 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 Coby Mayo [Gold] #20 worth compared with raw?
A PSA 10 Coby Mayo [Gold] #20 (Baseball Cards 2025 Topps) sells for about $53.13 versus $9.79 for a raw near-mint copy — a 5.4× premium as of Sep 2, 2026.
Which grading company is best for Coby Mayo [Gold] #20?
By resale value, BGS 10 leads at $69.00, ahead of PSA 10 at $53.13. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Coby Mayo [Gold] #20 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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