Slowpoke [Master Ball] #18

Pokemon Prismatic Evolutions · #018 · Jan 2025

Buy Raw on eBayPSA 10 Sold on eBay

Shop on TCGPlayer

Maybe — Proceed with Caution

Should You Grade?

Raw Price

$4.72

Expected Value

$-5.49

Net Profit

$21.28

Gem Rate

30.4%

ROI

+108%

Sales / Yr

338

Negative expected value ($-5.49) — while a PSA 10 would be profitable, the probability-weighted outcome across all grades means you lose money on average at this grading tier. 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

$4.72

BGS 10

$130.00

PSA 10

$99.83

SGC 10

$60.00

CGC 10

$41.00

$18.97

BGS 9.5

$17.00

$9.50

$8.25

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

30.4%Gem Rate (PSA 10)

+21 graded in 30 days

+58 in 90 days

Grade Distribution (674 total graded)

674Total

PSA 1020530.4%

PSA 932948.8%

PSA 811617.2%

PSA 7142.1%

Below 750.7%