Should You Grade?Should You Grade?
Card ExplorerSetsTop CardsPop ScannerMarket ToolsBlogUpgrade
Sign In
Mega Blastoise EX #30

Mega Blastoise EX #30

Pokemon XY · #30 · Base · Feb 2014

Buy Raw on eBayPSA 10 Sold on eBay
Shop on TCGPlayer

Maybe — Proceed with Caution

Should You Grade?

Raw Price
$15.00
Expected Value
$69.29
Net Profit
$238.00
Gem Rate
29.7%
ROI
+793%
Sales / Yr
197

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

Best Tier for Flipping

TAG Basic$22.00/card · 30+ business days
Net Profit $42.50
Per-Flip ROI 127%
Annualized 2,340%
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

CompanyBest TierGem RatePop10sCostEVNet ProfitROI
PSAPSA Standard52.3%8,4201,250$20.00$85.40$32.50127%
BGSBGS Standard52.3%8,4201,250$20.00$85.40$32.50127%
CGCCGC Standard52.3%8,4201,250$20.00$85.40$32.50127%
SGCSGC Standard52.3%8,4201,250$20.00$85.40$32.50127%
TAGTAG Standard52.3%8,4201,250$20.00$85.40$32.50127%
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
$15.00
BGS 10
$435.00
PSA 10
$334.88
CGC 10
$268.00
SGC 10
$201.00
BGS 9.5
$46.00
9
$41.90
8
$25.93
7
$15.02
View Sold PSA 10 Prices on PriceCharting →View Grading Data on GemRate →
0%100%
29.7%Gem Rate (PSA 10)
+23 graded in 30 days
+62 in 90 days

Grade Distribution (870 total graded)

870Total
PSA 1025829.7%
PSA 923927.5%
PSA 814917.1%
PSA 79410.8%
Below 712414.3%

eBay Market Signals

3–4 month horizon
Raw
30 days tracked
Active
42
30-day avg listings
Sold/day
2.4
84 resolved
Days to sell
7.0d
p90 21d
Liquidity
62%
sold ÷ listed
Supply 30d
+12.0%
Price 30d
+8.0%
PSA 10
30 days tracked
Active
11
30-day avg listings
Sold/day
0.30
14 resolved
Days to sell
18d
p90 46d
Liquidity
48%
sold ÷ listed
Supply 30d
-6.0%
Price 30d
+14.0%
Unlock with Pro →
© 2026 Should You Grade? Data from PriceCharting & GemRate.
AboutContactPrivacy PolicyTerms of ServiceAffiliate Disclosure