Shellder [Master Ball] #90

Pokemon Japanese Scarlet & Violet 151 · #090 · Jun 2023

Buy Raw on eBayPSA 10 Sold on eBay

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Maybe — Proceed with Caution

Should You Grade?

Raw Price

$11.28

Expected Value

$-7.01

Net Profit

$0.76

Gem Rate

87.6%

ROI

+3%

Sales / Yr

Negative expected value ($-7.01) — while a PSA 10 would be profitable, the probability-weighted outcome across all grades means you lose money on average at this grading tier. Only 75 sales per year — it may take time to find a buyer at full price. PSA 10 profit of $0.76 is thin — grading fees and selling costs eat most of the margin.

Best Tier for Flipping

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

Profitability by Grading Company

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%

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

$11.28

BGS 10

$65.00

PSA 10

$49.99

SGC 10

$30.00

CGC 10

$27.04

$10.25

$4.75

View Sold PSA 10 Prices on PriceCharting →View Grading Data on GemRate →

87.6%Gem Rate (PSA 10)

+2 graded in 30 days

+18 in 90 days

Grade Distribution (590 total graded)

590Total

PSA 1051787.6%

PSA 9579.7%

PSA 8122.0%

PSA 720.3%

Below 720.3%