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 Zygarde - SM48 (Prerelease) worth it?

Compare the graded medians below against the raw reference price of $15.48 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 11 completed sales

Zygarde - SM48 (Prerelease) graded prices.

As of August 3, 2026, Zygarde - SM48 (Prerelease) (SM Black Star Promos #SM48) trades across the graded ladder below, based on 11 real eBay completed sales; the raw copy’s reference price is $15.48.

Across SM Black Star Promos, PSA 10 copies sell for 1114.5× their raw reference price on average (94 cards, 5,293 PSA 10 completed sales tracked).

As of August 3, 2026Raw price & chart →Grading ROI calculator →

CGC · Zygarde - SM48 (Prerelease)

Grade	Median	Sales	vs Raw
NM-MT 8	$49.99	3	3.2×

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.