Detective Comics #840 (2008) — Comic Book Value
Detective ComicsWhat Detective Comics #840 (2008) is worth — ungraded and CGC graded (6.0, 8.0).
Detective Comics #840 (2008) value — Ungraded $9 · Grade 6.0 $12 · Grade 8.0 $16. Prices updated July 2026.
Real sold prices per grade — the Grade 8.0 premium on this card is 1.8× raw.
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Which version do you have?
For the cheapest ownership of Detective Comics #840 (2008), purchase the Newsstand version at $6. The Standard version at $8 offers no significant difference in the comic itself, only a slight price increase. Collectors prioritizing the absolute lowest cost should opt for the Newsstand. Those willing to spend the extra two dollars for the Standard version gain no tangible benefit in terms of edition or scarcity.
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Item details
- Series
- Detective Comics
Detective Comics #840 (2008) comic value
An ungraded copy of Detective Comics #840 (2008) averages around $9. A CGC 6.0 runs about $12, and a CGC 8.0 commands $16.
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
| Condition | Value | Based on |
|---|---|---|
| Ungraded | $9 | eBay sold comps |
| Grade 6.0 | $12 | eBay sold comps |
| Grade 8.0 | $16 | eBay sold comps |
Frequently asked questions
- What is the starting price for Detective Comics #840?
- The ungraded version of Detective Comics #840 is currently listed at $5.
- How much is a Grade 8.0 copy of this comic?
- A Grade 8.0 copy of Detective Comics #840 is available for $14.
- Is this comic worth buying in ungraded condition?
- Yes, ungraded copies are available for $5, offering a low entry point into the Detective Comics series.