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

$147.17

Expected Value

$537.98

Net Profit

$937.83

Gem Rate

58.0%

ROI

+578%

Sales / Yr

Only 19 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

$147.17

BGS 10

$1,788.00

PSA 10

$1,375.00

CGC 10

$1,100.00

SGC 10

$825.00

58.0%Gem Rate (PSA 10)

+13 graded in 30 days

+13 in 90 days

112Total

PSA 106558.0%

PSA 94641.1%

PSA 810.9%