Swamp Thing #18 (1975) — Comic Book Value
Swamp ThingWhat Swamp Thing #18 (1975) is worth — ungraded and CGC graded (6.0, 8.0).
Swamp Thing #18 (1975) value — Ungraded $10 · Grade 6.0 $29 · Grade 8.0 $50. Prices updated August 2026.
Real sold prices per grade — the Grade 8.0 premium on this card is 5.0× raw.
Live on eBay right now
Which version do you have?
For the cheapest way to own Swamp Thing #18 (1975), grab the $2 Standard version. The higher-priced Standard versions ($3, $4, $7) offer no tangible difference in the comic itself, suggesting the price variation reflects minor variations in condition or market demand. Collectors prioritizing mere ownership should select the lowest price point, while those seeking the highest grade or perceived value should consider paying more for the higher-priced copies.
▍
Price data verified against · 1
Item details
- Series
- Swamp Thing
Swamp Thing #18 (1975) comic value
An ungraded copy of Swamp Thing #18 (1975) averages around $10. A CGC 6.0 runs about $29, and a CGC 8.0 commands $50.
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 | $10 | eBay sold comps |
| Grade 6.0 | $29 | eBay sold comps |
| Grade 8.0 | $50 | eBay sold comps |
Frequently asked questions
- What is the best value condition for Swamp Thing #18?
- The ungraded version offers the lowest entry point, while a Grade 6.0 at $22 provides a good balance of condition and price.
- How much is a high-grade copy of this issue worth?
- A Grade 8.0 copy of Swamp Thing #18 is listed for $39, reflecting its better condition.
- Is this comic generally easy to find?
- Prices range from ungraded to $39 for a Grade 8.0, indicating varying availability based on condition.