Where do these graded prices come from?

Medians of 28 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 Blastoise worth it?

Compare the graded medians below against the raw reference price of $22.71 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 28 completed sales

Blastoise graded prices.

As of August 20, 2026, Blastoise (Plasma Blast #16) trades across the graded ladder below, based on 28 real eBay completed sales; the raw copy’s reference price is $22.71.

Across Plasma Blast, PSA 10 copies sell for 27.5× their raw reference price on average (5 cards, 26 PSA 10 completed sales tracked).

As of August 20, 2026Raw price & chart →Grading ROI calculator →

PSA · Blastoise

Grade	Median	Sales	vs Raw
Mint 9	$63.50	7	2.8×
NM-MT 8	$47.49	12	2.1×
EX-MT 6	$19.50	3	0.9×

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.