Sandy Shocks ex #159
Pokemon Prismatic Evolutions · #159 · Special Illustration Rare · Jan 2025
Maybe — Proceed with Caution
Should You Grade?
Raw Price
$24.45
Expected Value
$-6.24
Net Profit
$0.55
Gem Rate
38.6%
ROI
+1%
Sales / Yr
556
Negative expected value ($-6.24) — while a PSA 10 would be profitable, the probability-weighted outcome across all grades means you lose money on average at this grading tier. PSA 10 profit of $0.55 is thin — grading fees and selling costs eat most of the margin.
Best Tier for Flipping
Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.
Profitability by Grading Company
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
$24.45
BGS 10
$145.00
PSA 10
$111.28
SGC 10
$67.00
CGC 10
$40.00
9
$26.24
8
$24.05
BGS 9.5
$24.00
38.6%Gem Rate (PSA 10)
Grade Distribution (1,800 total graded)
1,800Total
PSA 1069538.6%
PSA 993351.8%
PSA 81538.5%
PSA 7160.9%
Below 720.1%