Bastiodon #21

Pokemon Mysterious Treasures · #21 · Cosmos · Aug 2007

Buy Raw on eBayPSA 10 Sold on eBay

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Maybe — Proceed with Caution

Should You Grade?

Raw Price

$1.43

Expected Value

$-2.36

Net Profit

$133.57

Gem Rate

2.8%

ROI

+813%

Sales / Yr

155

Negative expected value ($-2.36) — 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 36 graded cards may be unreliable, and the market for this card in graded form may be illiquid. The gem rate is only 3% — you'll need a very clean copy to hit PSA 10.

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

$1.43

BGS 10

$1,560.00

PSA 10

$1,200.00

SGC 10

$720.00

CGC 10

$150.00

BGS 9.5

$20.00

$17.00

$15.62

$1.49

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

2.8%Gem Rate (PSA 10)

⚠ Small sample size — gem rates based on only 36 graded cards may be unreliable.

Grade Distribution (36 total graded)

36Total

PSA 1012.8%

PSA 9616.7%

PSA 81541.7%

PSA 725.6%

Below 71027.8%