Where do these graded prices come from?

Medians of 39 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 Mewtwo - XY100 worth it?

Compare the graded medians below against the raw reference price of $25.55 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 39 completed sales

Mewtwo - XY100 graded prices.

As of August 21, 2026, Mewtwo - XY100 (XY Black Star Promos #XY100) trades across the graded ladder below, based on 39 real eBay completed sales; the raw copy’s reference price is $25.55.

Across XY Black Star Promos, PSA 10 copies sell for 60.0× their raw reference price on average (52 cards, 912 PSA 10 completed sales tracked).

As of August 21, 2026Raw price & chart →Grading ROI calculator →

PSA · Mewtwo - XY100

Grade	Median	Sales	vs Raw
Mint 9	$249.99	5	9.8×
NM-MT 8	$85.00	16	3.3×
NM 7	$79.90	4	3.1×
EX-MT 6	$59.90	3	2.3×

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.