Dialga
No SGC 9 sales are tracked for the Holo printing; this is SGC 7.5, the nearest grade with data.
Estimated value · SGC 7.5 · updated Oct 19
$675.14
- Recent sales: last sale $99, Jan 20
- Evidence: limited · no sales in 180 days · last Jan 20
- Next-sale range: $450 to $1,181
Estimate, recent sales and range: adjusted to typical eBay auction prices.
How we got this
Estimated from similar cards: fewer than 5 sales we counted in 90 days, so the figure is modeled from 0 sales in 90 days, 1 older sale adjusted to today.
Recent sales: the middle (median) of the last 1 sales we counted (Jan 20), each adjusted to typical eBay auction prices: Buy It Now and auction-house prices are moved by the gap we measure between venues in this era. The sales list shows the prices paid.
Checked on 804 estimate-to-next-sale pairs for grades with no sales in 90 days, Diamond & Pearl to HGSS, from Jan 2, 2025 to Oct 15, 2026: half the next sales landed within 39 percent of the estimate at the time (as of Oct 18). A record of past estimates, not a guarantee for this card.
Estimates with limited evidence had a median error of 22 percent on 44,262 past cases (Jan 1, 2025 to Oct 16, 2026).
Last sale 272 days ago. Since then, Diamond & Pearl to HGSS sales have run 7 percent above their previous prices.
Evidence: strong means at least 4.5 effective recent sales (older and clustered sales count for less) with a spread under 0.15; moderate, at least 2.8 with a spread under 0.30; limited, anything less. The basis (sales of this grade, or estimated from similar cards) is stated separately.
An estimate from completed sales. Not an offer or an appraisal.
Too few sales
Not enough recent sales to judge direction.
Sales, last 3 years · 1
Each dot is a sale; tap one for details. Prices are adjusted to typical eBay auction prices. The latest sale is ringed.
About this chart
Buy It Now and auction-house prices are moved by the gap we measure between venues in this era, so every dot is comparable with an eBay auction. Tap a dot to see the price paid.
No sales in the last 90 days. The last sale was $98.99 on Jan 20, 2026. (Prices adjusted to typical eBay auction prices.)
Buy It Now estimate: $675.14 to $928.07. Our estimate plus the usual extra people pay to buy at once in this era.
On eBay now
Listings from eBay · updated 2 hours agoNo copies listed on eBay right now.
Prices and stock as eBay lists them. eBay is not part of this site.
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Grades
Our estimate for each grade, with the change over 30 days and how much evidence backs it. Grades with few recent sales show the range of what sold instead.
How we got this
A grade's estimate needs 5 or more sales we counted in 90 days; otherwise the panel shows the lowest to highest sale of the last year. When neighbouring grades' sales overlap, or a lower grade's figure would sit above a higher grade's, they share one precision-weighted estimate (each figure weighted by how tight its range is). The 30-day change compares with the last settled estimate and shows only with strong or moderate evidence.
Sales, last 90 days, SGC 7.5
Prices as paid. Tap a sale to see it adjusted to typical eBay auction prices.
No sales in this period.
Report a missing sale
Population
No population report for this printing yet.
