Detective Comics #831 (2007) — Comic Book Value

Detective Comics

What Detective Comics #831 (2007) is worth — ungraded and CGC graded (6.0, 8.0).

Detective Comics #831 (2007) value — Ungraded $6 · Grade 6.0 $10 · Grade 8.0 $14. Prices updated July 2026.

Series · Detective Comics
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Value by grade
$6
Ungraded
+67%
$10
Grade 6.0
2.3×
$14
Grade 8.0

Real sold prices per grade — the Grade 8.0 premium on this card is 2.3× raw.

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Which version do you have?

To simply own Detective Comics #831 (2007), buy the Standard version for $6. The Newsstand version at $20 offers a premium, likely due to its original distribution or packaging, implying a slight scarcity or collector desirability over the standard copy. Buyers prioritizing budget should choose Standard, while those seeking a more complete or display-worthy piece should pay the extra for the Newsstand.

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Item details

Series
Detective Comics

Detective Comics #831 (2007) comic value

An ungraded copy of Detective Comics #831 (2007) averages around $6. A CGC 6.0 runs about $10, and a CGC 8.0 commands $14.

What drives the price

Grade is everything in comics — spine ticks, page color, and restoration decide the number, and the jump from raw to high grade can be 10×+. Key issues (first appearances, origins, deaths) carry the biggest premiums, and early printings beat reprints.

Price guide

Sold values by grade vs. what sellers ask today

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ConditionValueBased on
Ungraded$6eBay sold comps
Grade 6.0$10eBay sold comps
Grade 8.0$14eBay sold comps

Frequently asked questions

What is the current ungraded value for Detective Comics #831?
The ungraded copy of Detective Comics #831 is currently valued at $7.
How much more is a high-grade copy worth?
A Grade 8.0 copy sells for $15, which is $8 more than the ungraded price.
What series is Detective Comics #831 from?
Detective Comics #831 is part of the Detective Comics series.

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