Groudon ex
Estimated value · CGC 8.5 · Unlimited · updated Oct 19
$491.59
- Recent sales: middle of the last 3: $374, Oct 7 to Oct 14
- Evidence: limited · 8 sales in 180 days · last Oct 14
- Next-sale range: $419 to $860
Estimate, recent sales and range: adjusted to typical eBay auction prices.
How we got this
A full estimate: 8 sales we counted in the last 90 days, weighted toward the most recent.
Recent sales: the middle (median) of the last 3 sales we counted (Oct 7 to Oct 14), 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 4,823 estimate-to-next-sale pairs for grades with 5 to 8 sales in 90 days, EX era, from Jan 1, 2025 to Oct 16, 2026: half the next sales landed within 15 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 20 percent on 25,291 past cases (Jan 1, 2025 to Oct 16, 2026).
Sales in the last 90 days ran from $399.00 (Oct 7) to $525.00 (Oct 14) (8 sales, prices paid).
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 90 days · 8
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.
From Sep 27, 2026 to Oct 14, 2026, 8 sales had a median of $387, with no clear trend. (Prices adjusted to typical eBay auction prices.)
Buy It Now estimate: $491.59 to $602.91. Our estimate plus the usual extra people pay to buy at once in this era.
Groudon ex · CGC 8.5 · Unlimited · 1 year
Oct 19, 2026 · estimate $491.59 · that week: no sales
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Listings from eBay · updated less than an hour agoNo copies listed on eBay right now.
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Compared with the 8 sales of the last 90 days and the estimate.
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Grades · Unlimited
Grades 6 to 7.5 share one estimate so a lower grade never shows above a higher one.
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, CGC 8.5 · Unlimited
Prices as paid. Tap a sale to see it adjusted to typical eBay auction prices.
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Population
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