Should You Grade?Should You Grade?
Card ExplorerSetsTop CardsPop ScannerMarket ToolsBlogUpgrade
Sign In
Serperior Ex #159

Serperior Ex #159

Pokemon Japanese Black Bolt · #159 · Jun 2025

Buy Raw on eBayPSA 10 Sold on eBay
Shop on TCGPlayer

Maybe — Proceed with Caution

Should You Grade?

Raw Price
$2.49
Expected Value
$6.33
Net Profit
$7.08
Gem Rate
94.1%
ROI
+40%
Sales / Yr
119

PSA 10 profit of $7.08 is thin — grading fees and selling costs eat most of the margin.

Best Tier for Flipping

TAG Basic$22.00/card · 30+ business days
Net Profit $42.50
Per-Flip ROI 127%
Annualized 2,340%
Unlock with Pro →

Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.

Profitability by Grading Company

CompanyBest TierGem RatePop10sCostEVNet ProfitROI
PSAPSA Standard52.3%8,4201,250$20.00$85.40$32.50127%
BGSBGS Standard52.3%8,4201,250$20.00$85.40$32.50127%
CGCCGC Standard52.3%8,4201,250$20.00$85.40$32.50127%
SGCSGC Standard52.3%8,4201,250$20.00$85.40$32.50127%
TAGTAG Standard52.3%8,4201,250$20.00$85.40$32.50127%
Compare All Companies with Pro →

Shows the best-value tier from each grading company based on EV, cost, and turnaround. Pop = total graded population; 10s = grade 10 count.

Price by Grade

Raw
$2.49
BGS 10
$43.00
PSA 10
$33.00
CGC 10
$24.57
SGC 10
$20.00
BGS 9.5
$16.00
9
$13.59
View Sold PSA 10 Prices on PriceCharting →View Grading Data on GemRate →
0%100%
94.1%Gem Rate (PSA 10)
+163 graded in 30 days
+233 in 90 days

Grade Distribution (441 total graded)

441Total
PSA 1041594.1%
PSA 9225.0%
PSA 810.2%
PSA 730.7%
© 2026 Should You Grade? Data from PriceCharting & GemRate.
AboutContactPrivacy PolicyTerms of ServiceAffiliate Disclosure