Brock's Onix #21

Pokemon Gym Heroes · #21 · Base · Aug 2000

Buy Raw on eBayPSA 10 Sold on eBay

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No — Not Worth Grading

Should You Grade?

Raw Price

$8.13

Expected Value

$-7.39

Net Profit

$-10.63

Gem Rate

18.6%

ROI

-46%

Sales / Yr

124

Even a PSA 10 would lose $10.63 after the $15.00 grading cost and selling fees. The graded value doesn't justify the investment.

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

$8.13

BGS 10

$158.00

PSA 10

$121.50

SGC 10

$73.00

BGS 9.5

$25.00

$22.43

$12.87

CGC 10

$12.50

$10.00

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

18.6%Gem Rate (PSA 10)

Grade Distribution (118 total graded)

118Total

PSA 102218.6%

PSA 94437.3%

PSA 83227.1%

PSA 7119.3%

Below 797.6%