St. Marcus Mars [Red Alternate Art] OP13-091

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

Maybe — Proceed with Caution

Should You Grade?

Raw Price

$150.25

Expected Value

$387.81

Net Profit

$645.75

Gem Rate

61.0%

ROI

+391%

Sales / Yr

Only 27 sales per year — it may take time to find a buyer at full price.

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

$150.25

BGS 10

$1,757.00

PSA 10

$1,351.90

CGC 10

$811.00

SGC 10

$811.00

61.0%Gem Rate (PSA 10)

+41 graded in 30 days

+88 in 90 days

187Total

PSA 1011461.0%

PSA 96836.4%

PSA 831.6%

Below 721.1%