![Gravekeeper's Spy [Quarter Century Secret Rare] RA03-EN121 (YuGiOh Quarter Century Bonanza) — is it worth grading?](https://i.ebayimg.com/images/g/k7cAAeSwY3xqOjP7/s-l1600.jpg)
Is Gravekeeper's Spy [Quarter Century Secret Rare] RA03-EN121 worth grading?
Yu-Gi-Oh! · YuGiOh Quarter Century Bonanza · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Gravekeeper's Spy [Quarter Century Secret Rare] RA03-EN121 sells for $142 against $18.00 raw: a $124 spread, 7.9× the ungraded price. Even a PSA 9 ($94.38) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
- Raw (NM)
- $18.00
- PSA 10
- $142
- PSA 9
- $94.38
- Gem premium
- 7.9×
- As of
- Aug 9, 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 | $142 | +$99.10 | +$74.10 | −$25.90 |
| PSA 9 | $94.38 | +$51.38 | +$26.38 | −$73.62 |
| PSA 8 | $47.35 | +$4.35 | −$20.65 | −$121 |
Net = sale price − $18.00 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% | $106 | +$38.31 |
| 50% | $118 | +$50.24 |
| 75% | $130 | +$62.17 |
Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.
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 | $185 | best | 55/45 | 70/30 |
| PSA 10 | $142 | −$42.90 | 55/45 | 75/25 |
| CGC 10 | $85.00 | −$100 | 55/45 | 75/25 |
| SGC 10 | $85.00 | −$100 | 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 | $142 | $85.00 | $185 | $85.00 | — |
| 9.5 | — | — | — | — | $104 |
| 9 | — | — | — | — | $94.38 |
| 8 | — | — | — | — | $47.35 |
| 7 | — | — | — | — | $28.11 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
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Grading Gravekeeper's Spy [Quarter Century Secret Rare] RA03-EN121 — FAQ
Is Gravekeeper's Spy [Quarter Century Secret Rare] RA03-EN121 worth grading?
A PSA 10 Gravekeeper's Spy [Quarter Century Secret Rare] RA03-EN121 sells for $142 against $18.00 raw: a $124 spread, 7.9× the ungraded price. Even a PSA 9 ($94.38) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
How much is a PSA 10 Gravekeeper's Spy [Quarter Century Secret Rare] RA03-EN121 worth compared with raw?
A PSA 10 Gravekeeper's Spy [Quarter Century Secret Rare] RA03-EN121 (YuGiOh Quarter Century Bonanza) sells for about $142 versus $18.00 for a raw near-mint copy — a 7.9× premium as of Aug 9, 2026.
Which grading company is best for Gravekeeper's Spy [Quarter Century Secret Rare] RA03-EN121?
By resale value, BGS 10 leads at $185, ahead of PSA 10 at $142. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Gravekeeper's Spy [Quarter Century Secret Rare] RA03-EN121 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.
Is your Yu-Gi-Oh! 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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