Sky Seal Stone [Reverse Holo] #143

Pokemon Crown Zenith · #143 · Base · Jan 2023

Buy Raw on eBayPSA 10 Sold on eBay

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Maybe — Proceed with Caution

Should You Grade?

Raw Price

$1.49

Expected Value

$-2.20

Net Profit

$12.51

Gem Rate

23.0%

ROI

+76%

Sales / Yr

Negative expected value ($-2.20) — while a PSA 10 would be profitable, the probability-weighted outcome across all grades means you lose money on average at this grading tier. Low grading population — gem rates based on only 56 graded cards may be unreliable, and the market for this card in graded form may be illiquid. The gem rate is only 23% — you'll need a very clean copy to hit PSA 10. Only 13 sales per year — it may take time to find a buyer at full price. PSA 10 profit of $12.51 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

$1.49

BGS 10

$46.00

PSA 10

$35.74

CGC 10

$29.00

SGC 10

$21.00

BGS 9.5

$14.00

$12.69

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

23.0%Gem Rate (PSA 10)

Past month gem rate: 0.0%

ⓘ Per-grade breakdown not available — EV is estimated using the gem rate and typical grade distributions.