Where do these graded prices come from?

Medians of 197 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 Magikarp & Wailord GX worth it?

Compare the graded medians below against the raw reference price of $129.99 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 197 completed sales

Magikarp & Wailord GX graded prices.

As of August 20, 2026, Magikarp & Wailord GX (SM Black Star Promos #SM166) trades across the graded ladder below, based on 197 real eBay completed sales; the raw copy’s reference price is $129.99.

Across SM Black Star Promos, PSA 10 copies sell for 34.0× their raw reference price on average (99 cards, 6,076 PSA 10 completed sales tracked).

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

PSA · Magikarp & Wailord GX

Grade	Median	Sales	vs Raw
Mint 9	$1.2K	25	9.2×
NM-MT 8	$199.90	99	1.5×
NM 7	$149.90	30	1.2×
EX-MT 6	$59.99	9	0.5×

CGC · Magikarp & Wailord GX

Grade	Median	Sales	vs Raw
NM-MT 8	$81.00	3	0.6×

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.