Midpoint - Card Centering Tool
Silvally-GX (SM Black Star Promos SM91) — is it worth grading?

Is Silvally-GX worth grading?

Pokémon · SM Black Star Promos · SM91 · full price guide →

Strong grading candidate — 54× premium in PSA 10

A PSA 10 Silvally-GX sells for $241 against $4.49 raw: a $237 spread, 54× the ungraded price. A PSA 9 ($20.00) 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)
$4.49
PSA 10
$241
PSA 9
$20.00
Gem premium
54×
As of
Aug 10, 2026

Break-even by outcome and fee

Silvally-GX: net result of grading versus selling raw, by outcome and fee tier
If it comes back…Sells forEconomy / bulk (~$25.00)Standard (~$50.00)Express (~$150)
Gem — PSA 10$241+$212+$187+$86.51
PSA 9$20.00−$9.49−$34.49−$134

Net = sale price − $4.49 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?

Silvally-GX: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$75.25+$20.76
50%$131+$76.01
75%$186+$131

Break-even gem rate at the standard fee: about 16%. 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
Silvally-GX: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$241best55/4575/25

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.

Silvally-GX graded prices by company and grade
GradePSA
10$241
9$4.00
6$14.50
5$9.98

Run your own numbers

Should I pay this?

Enter the seller’s asking price to see your net outcome per grade.

Other SM Black Star Promos cards worth checking

Full set checklist

Grading Silvally-GX — FAQ

Is Silvally-GX worth grading?

A PSA 10 Silvally-GX sells for $241 against $4.49 raw: a $237 spread, 54× the ungraded price. A PSA 9 ($20.00) 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 Silvally-GX worth compared with raw?

A PSA 10 Silvally-GX (SM Black Star Promos SM91) sells for about $241 versus $4.49 for a raw near-mint copy — a 54× premium as of Aug 10, 2026.

What centering does Silvally-GX need for a PSA 10?

PSA publishes 55/45 front and 75/25 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 Silvally-GX break even?

At a standard ~$50 fee, submitting Silvally-GX breaks even when it gems about 16% of the time (a miss assumed to sell at the PSA 9 price of $20.00).

Is your Pokémon 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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