Where do these graded prices come from?

Medians of 70 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 Nidoking (Delta Species) worth it?

Compare the graded medians below against the raw reference price of $102.50 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 70 completed sales

Nidoking (Delta Species) graded prices.

As of August 20, 2026, Nidoking (Delta Species) (Dragon Frontiers #6) trades across the graded ladder below, based on 70 real eBay completed sales; the raw copy’s reference price is $102.50.

Across Dragon Frontiers, PSA 10 copies sell for 39.8× their raw reference price on average (18 cards, 144 PSA 10 completed sales tracked).

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

PSA · Nidoking (Delta Species)

Grade	Median	Sales	vs Raw
Mint 9	$166.91	16	1.6×
NM-MT 8	$73.53	24	0.7×
NM 7	$43.51	5	0.4×
EX-MT 6	$44.99	3	0.4×
EX 5	$40.50	4	0.4×

CGC · Nidoking (Delta Species)

Grade	Median	Sales	vs Raw
Gem Mint 10	$250.00	4	2.4×
Mint 9	$99.99	7	1.0×

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.