Where do these graded prices come from?

Medians of 15 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 Darkness Energy (Basic) worth it?

Compare the graded medians below against the raw reference price of $56.21 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 15 completed sales

Darkness Energy (Basic) graded prices.

As of August 20, 2026, Darkness Energy (Basic) (HeartGold & SoulSilver #121) trades across the graded ladder below, based on 15 real eBay completed sales; the raw copy’s reference price is $56.21.

Across HeartGold & SoulSilver, PSA 10 copies sell for 31.2× their raw reference price on average (19 cards, 140 PSA 10 completed sales tracked).

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

PSA · Darkness Energy (Basic)

Grade	Median	Sales	vs Raw
Mint 9	$150.00	6	2.7×
NM-MT 8	$84.04	3	1.5×

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.