Is ADA Bomb #620a worth grading?
Garbage Pail Kids · 1988 Garbage Pail Kids · full price guide →
Strong grading candidate — 7.5× premium in PSA 10
A PSA 10 ADA Bomb #620a sells for $120 against $16.05 raw: a $104 spread, 7.5× the ungraded price. A PSA 9 ($36.00) 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)
- $16.05
- PSA 10
- $120
- PSA 9
- $36.00
- Gem premium
- 7.5×
- As of
- Aug 16, 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 | $120 | +$79.33 | +$54.33 | −$45.67 |
| PSA 9 | $36.00 | −$5.05 | −$30.05 | −$130 |
| PSA 8 | $28.09 | −$12.96 | −$37.96 | −$138 |
Net = sale price − $16.05 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% | $57.09 | −$8.95 |
| 50% | $78.19 | +$12.14 |
| 75% | $99.28 | +$33.23 |
Break-even gem rate at the standard fee: about 36%. 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 | $156 | best | 55/45 | 70/30 |
| PSA 10 | $120 | −$35.62 | 55/45 | 75/25 |
| CGC 10 | $72.00 | −$84.00 | 55/45 | 75/25 |
| SGC 10 | $72.00 | −$84.00 | 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.
Full grade ladder
Raw conditions & history →| Grade | PSA | CGC | BGS | SGC | Graded |
|---|---|---|---|---|---|
| 10 | $120 | $72.00 | $156 | $72.00 | — |
| 9.5 | — | — | — | — | $40.00 |
| 9 | — | — | — | — | $36.00 |
| 8 | — | — | — | — | $28.09 |
| 7 | — | — | — | — | $25.48 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
Other 1988 Garbage Pail Kids cards worth checking
Full set checklist →Grading ADA Bomb #620a — FAQ
Is ADA Bomb #620a worth grading?
A PSA 10 ADA Bomb #620a sells for $120 against $16.05 raw: a $104 spread, 7.5× the ungraded price. A PSA 9 ($36.00) 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 ADA Bomb #620a worth compared with raw?
A PSA 10 ADA Bomb #620a (1988 Garbage Pail Kids) sells for about $120 versus $16.05 for a raw near-mint copy — a 7.5× premium as of Aug 16, 2026.
Which grading company is best for ADA Bomb #620a?
By resale value, BGS 10 leads at $156, ahead of PSA 10 at $120. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does ADA Bomb #620a 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 ADA Bomb #620a break even?
At a standard ~$50 fee, submitting ADA Bomb #620a breaks even when it gems about 36% of the time (a miss assumed to sell at the PSA 9 price of $36.00).
Is your Garbage Pail Kids 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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