Midpoint - Card Centering Tool
Porygon-Z (BW Black Star Promos BW84) — is it worth grading?

Is Porygon-Z worth grading?

Pokémon · BW Black Star Promos · BW84 · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 7 Porygon-Z sells for $180 against $24.30 raw: a $156 spread, 7.4× the ungraded price. Even a PSA 9 ($75.27) 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)
$24.30
PSA 7
$180
PSA 9
$75.27
Gem premium
7.4×
As of
Aug 10, 2026

Break-even by outcome and fee

Porygon-Z: 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 7$180+$131+$106+$5.70
PSA 9$75.27+$25.97+$0.97−$99.03
PSA 8$43.98−$5.32−$30.32−$130

Net = sale price − $24.30 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?

Porygon-Z: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$101+$27.15
50%$128+$53.33
75%$154+$79.52

Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.

Porygon-Z graded prices by company and grade
GradePSABGS
9$75.27$32.40
8$43.98
7$180

Run your own numbers

Should I pay this?

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

Other BW Black Star Promos cards worth checking

Full set checklist

Grading Porygon-Z — FAQ

Is Porygon-Z worth grading?

A PSA 7 Porygon-Z sells for $180 against $24.30 raw: a $156 spread, 7.4× the ungraded price. Even a PSA 9 ($75.27) 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.

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.

Check my card free