Where do these graded prices come from?

Medians of 11 real eBay completed sales aggregated per grade (PSA, BGS, CGC) — a completed-sale evidence layer, not listing asks. Sample sizes are shown per grade; thin grades deserve caution.

Is grading Poliwhirl worth it?

Compare the graded medians below against the raw reference price of $1.79 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 11 completed sales

Poliwhirl graded prices.

As of August 22, 2026, Poliwhirl (Base #038) trades across the graded ladder below, based on 11 real eBay completed sales; the raw copy’s reference price is $1.79.

Across Base, PSA 10 copies sell for 62.5× their raw reference price on average (23 cards, 136 PSA 10 completed sales tracked).

As of August 22, 2026Raw price & chart →Grading ROI calculator →

PSA · Poliwhirl

Grade	Median	Sales	vs Raw
Mint 9	$37.47	7	20.9×

Medians of real eBay completed sales per grade; small sample sizes deserve caution. Prices are dated reference values — cite them with the as-of date above. Attribution: CardIntel (cardintel.io). See the methodology.