Where do these graded prices come from?

Medians of 5 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 Chi-Yu - 057 (Prerelease) [Staff] worth it?

Compare the graded medians below against the raw reference price of $69.51 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 5 completed sales

Chi-Yu - 057 (Prerelease) [Staff] graded prices.

As of August 2, 2026, Chi-Yu - 057 (Prerelease) [Staff] (Scarlet & Violet Black Star Promos #057) trades across the graded ladder below, based on 5 real eBay completed sales; the raw copy’s reference price is $69.51.

Across Scarlet & Violet Black Star Promos, PSA 10 copies sell for 30.9× their raw reference price on average (123 cards, 10,550 PSA 10 completed sales tracked).

As of August 2, 2026Raw price & chart →Grading ROI calculator →

PSA · Chi-Yu - 057 (Prerelease) [Staff]

Grade	Median	Sales	vs Raw
Mint 9	$60.00	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.