Where do these graded prices come from?

Medians of 29 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 Cloyster (8) worth it?

Compare the graded medians below against the raw reference price of $93.37 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 29 completed sales

Cloyster (8) graded prices.

As of August 5, 2026, Cloyster (8) (Expedition Base Set #008) trades across the graded ladder below, based on 29 real eBay completed sales; the raw copy’s reference price is $93.37.

Across Expedition Base Set, PSA 10 copies sell for 25.4× their raw reference price on average (55 cards, 335 PSA 10 completed sales tracked).

As of August 5, 2026Raw price & chart →Grading ROI calculator →

PSA · Cloyster (8)

Grade	Median	Sales	vs Raw
Mint 9	$387.85	3	4.2×
NM-MT 8	$253.82	9	2.7×
NM 7	$152.50	4	1.6×

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.