Is Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8 worth grading?
Baseball · Baseball Cards 2025 Topps Dynamic Duals · full price guide →
Strong grading candidate — 4.2× premium in PSA 10
A PSA 10 Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8 sells for $145 against $34.73 raw: a $111 spread, 4.2× the ungraded price. A PSA 9 ($47.98) 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)
- $34.73
- PSA 10
- $145
- PSA 9
- $47.98
- Gem premium
- 4.2×
- 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 | $145 | +$85.69 | +$60.69 | −$39.31 |
| PSA 9 | $47.98 | −$11.75 | −$36.75 | −$137 |
| PSA 8 | $21.68 | −$38.05 | −$63.05 | −$163 |
Net = sale price − $34.73 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% | $72.34 | −$12.39 |
| 50% | $96.70 | +$11.97 |
| 75% | $121 | +$36.33 |
Break-even gem rate at the standard fee: about 38%. 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 | $189 | best | 55/45 | 70/30 |
| PSA 10 | $145 | −$43.58 | 55/45 | 75/25 |
| CGC 10 | $87.00 | −$102 | 55/45 | 75/25 |
| SGC 10 | $87.00 | −$102 | 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 2025 Topps Dynamic Duals cards worth checking
Full set checklist →![Shohei Ohtani / Aaron Judge [Black] #24 2025 Topps Dynamic Duals card](https://i.ebayimg.com/images/g/rf0AAeSwKNZqOxrp/s-l500.jpg)
Grading Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8 — FAQ
Is Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8 worth grading?
A PSA 10 Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8 sells for $145 against $34.73 raw: a $111 spread, 4.2× the ungraded price. A PSA 9 ($47.98) 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 Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8 worth compared with raw?
A PSA 10 Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8 (Baseball Cards 2025 Topps Dynamic Duals) sells for about $145 versus $34.73 for a raw near-mint copy — a 4.2× premium as of Sep 3, 2026.
Which grading company is best for Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8?
By resale value, BGS 10 leads at $189, ahead of PSA 10 at $145. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8 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 Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8 break even?
At a standard ~$50 fee, submitting Ken Griffey Jr. / Ken Griffey Sr. [Purple] #8 breaks even when it gems about 38% of the time (a miss assumed to sell at the PSA 9 price of $47.98).
Best on iPhone & Android
Check your baseball card in the Midpoint app
Scan with your camera to measure centering to the millimeter, get an AI grade with corner and edge close-ups, see what your copy is worth, and track it in your portfolio. Free to start.
