Where do these graded prices come from?

Medians of 30 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 Cobalion EX (133 Full Art) worth it?

Compare the graded medians below against the raw reference price of $49.78 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 30 completed sales

Cobalion EX (133 Full Art) graded prices.

As of August 20, 2026, Cobalion EX (133 Full Art) (Plasma Storm #133) trades across the graded ladder below, based on 30 real eBay completed sales; the raw copy’s reference price is $49.78.

Across Plasma Storm, PSA 10 copies sell for 62.8× their raw reference price on average (10 cards, 129 PSA 10 completed sales tracked).

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

PSA · Cobalion EX (133 Full Art)

Grade	Median	Sales	vs Raw
Mint 9	$199.00	12	4.0×
NM-MT 8	$137.45	6	2.8×
NM 7	$51.00	3	1.0×

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.