Is Necrovalley MAMA-EN109 worth grading?
Yu-Gi-Oh! · YuGiOh Magnificent Mavens · full price guide →
Worth grading only if it gems
A PSA 10 Necrovalley MAMA-EN109 brings $148 versus $55.00 raw — a $92.66 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($79.01) only about breaks even after fees, so the case rests on gemming.
- Raw (NM)
- $55.00
- PSA 10
- $148
- PSA 9
- $79.01
- Gem premium
- 2.7×
- As of
- Sep 13, 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 | $148 | +$67.66 | +$42.66 | −$57.34 |
| PSA 9 | $79.01 | −$0.99 | −$25.99 | −$126 |
Net = sale price − $55.00 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% | $96.17 | −$8.83 |
| 50% | $113 | +$8.34 |
| 75% | $130 | +$25.50 |
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 | $192 | best | 55/45 | 70/30 |
| PSA 10 | $148 | −$44.34 | 55/45 | 75/25 |
| CGC 10 | $89.00 | −$103 | 55/45 | 75/25 |
| SGC 10 | $89.00 | −$103 | 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 Necrovalley MAMA-EN109 — FAQ
Is Necrovalley MAMA-EN109 worth grading?
A PSA 10 Necrovalley MAMA-EN109 brings $148 versus $55.00 raw — a $92.66 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($79.01) only about breaks even after fees, so the case rests on gemming.
How much is a PSA 10 Necrovalley MAMA-EN109 worth compared with raw?
A PSA 10 Necrovalley MAMA-EN109 (YuGiOh Magnificent Mavens) sells for about $148 versus $55.00 for a raw near-mint copy — a 2.7× premium as of Sep 13, 2026.
Which grading company is best for Necrovalley MAMA-EN109?
By resale value, BGS 10 leads at $192, ahead of PSA 10 at $148. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Necrovalley MAMA-EN109 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 Necrovalley MAMA-EN109 break even?
At a standard ~$50 fee, submitting Necrovalley MAMA-EN109 breaks even when it gems about 38% of the time (a miss assumed to sell at the PSA 9 price of $79.01).
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