Grass Energy #99

Pokemon Base Set · #99 · Base · Jun 1995

Buy Raw on eBayPSA 10 Sold on eBay

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Maybe — Proceed with Caution

Should You Grade?

Raw Price

$0.70

Expected Value

$18.17

Net Profit

$33.97

Gem Rate

29.9%

ROI

+216%

Sales / Yr

234

The gem rate is only 30% — you'll need a very clean copy to hit PSA 10.

Best Tier for Flipping

Unlock with Pro →

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

$0.70

BGS 10

$128.00

PSA 10

$98.75

CGC 10

$49.67

BGS 9.5

$48.00

$40.49

SGC 10

$19.75

$14.36

$11.50

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

29.9%Gem Rate (PSA 10)

+10 graded in 30 days

+46 in 90 days

Grade Distribution (1,259 total graded)

1,259Total

PSA 1037629.9%

PSA 950139.8%

PSA 818714.9%

PSA 7806.4%

Below 71108.7%