Is ADA Bomb #620a worth grading?
Garbage Pail Kids · 1988 Garbage Pail Kids · full price guide →
Strong grading candidate — 5.9× premium in PSA 10
A PSA 10 ADA Bomb #620a sells for $120 against $20.35 raw: a $100 spread, 5.9× the ungraded price. A PSA 9 ($39.11) 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)
- $20.35
- PSA 10
- $120
- PSA 9
- $39.11
- Gem premium
- 5.9×
- As of
- Oct 4, 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 | +$75.03 | +$50.03 | −$49.97 |
| PSA 9 | $39.11 | −$6.24 | −$31.24 | −$131 |
| PSA 8 | $25.07 | −$20.28 | −$45.28 | −$145 |
Net = sale price − $20.35 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% | $59.43 | −$10.92 |
| 50% | $79.75 | +$9.40 |
| 75% | $100 | +$29.71 |
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 | $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.
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Grading ADA Bomb #620a — FAQ
Is ADA Bomb #620a worth grading?
A PSA 10 ADA Bomb #620a sells for $120 against $20.35 raw: a $100 spread, 5.9× the ungraded price. A PSA 9 ($39.11) 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 $20.35 for a raw near-mint copy — a 5.9× premium as of Oct 4, 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 38% of the time (a miss assumed to sell at the PSA 9 price of $39.11).
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