St. Marcus Mars [Alternate Art] OP13-091

One Piece Japanese Carrying on His Will · #091 · Aug 2025

Maybe — Proceed with Caution

Should You Grade?

Raw Price

$11.25

Expected Value

$3.83

Net Profit

$17.75

Gem Rate

57.1%

ROI

+68%

Sales / Yr

100

PSA 10 profit of $17.75 is thin — grading fees and selling costs eat most of the margin.

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

Company	Best Tier	Gem Rate	Pop	10s	Cost	EV	Net Profit	ROI
PSA	PSA Standard	52.3%	8,420	1,250	$20.00	$85.40	$32.50	127%
BGS	BGS Standard	52.3%	8,420	1,250	$20.00	$85.40	$32.50	127%
CGC	CGC Standard	52.3%	8,420	1,250	$20.00	$85.40	$32.50	127%
SGC	SGC Standard	52.3%	8,420	1,250	$20.00	$85.40	$32.50	127%
TAG	TAG Standard	52.3%	8,420	1,250	$20.00	$85.40	$32.50	127%

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

Raw

$11.25

BGS 10

$302.00

PSA 10

$55.00

CGC 10

$44.00

SGC 10

$33.00

$16.50

57.1%Gem Rate (PSA 10)

+29 graded in 30 days

+34 in 90 days

133Total

PSA 107657.1%

PSA 95339.8%

PSA 832.3%

Below 710.8%