Is Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479 worth grading?
Baseball · Baseball Cards 1998 Topps · full price guide →
Strong grading candidate — 14× premium in PSA 10
A PSA 10 Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479 sells for $93.87 against $6.59 raw: a $87.28 spread, 14× the ungraded price. A PSA 9 ($11.81) 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)
- $6.59
- PSA 10
- $93.87
- PSA 9
- $11.81
- Gem premium
- 14×
- 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 | $93.87 | +$62.28 | +$37.28 | −$62.72 |
| PSA 9 | $11.81 | −$19.78 | −$44.78 | −$145 |
Net = sale price − $6.59 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% | $32.33 | −$24.26 |
| 50% | $52.84 | −$3.75 |
| 75% | $73.36 | +$16.77 |
Break-even gem rate at the standard fee: about 55%. 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 | $122 | best | 55/45 | 70/30 |
| PSA 10 | $93.87 | −$28.13 | 55/45 | 75/25 |
| CGC 10 | $56.00 | −$66.00 | 55/45 | 75/25 |
| SGC 10 | $56.00 | −$66.00 | 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 Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479 — FAQ
Is Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479 worth grading?
A PSA 10 Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479 sells for $93.87 against $6.59 raw: a $87.28 spread, 14× the ungraded price. A PSA 9 ($11.81) 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 Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479 worth compared with raw?
A PSA 10 Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479 (Baseball Cards 1998 Topps) sells for about $93.87 versus $6.59 for a raw near-mint copy — a 14× premium as of Sep 3, 2026.
Which grading company is best for Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479?
By resale value, BGS 10 leads at $122, ahead of PSA 10 at $93.87. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479 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 Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479 break even?
At a standard ~$50 fee, submitting Mike Piazza / Ken Griffey Jr. [Minted in Cooperstown] #479 breaks even when it gems about 55% of the time (a miss assumed to sell at the PSA 9 price of $11.81).
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