Sub-Mariner #30 (1970) — Comic Book Value
Sub MarinerWhat Sub-Mariner #30 (1970) is worth — ungraded and CGC graded (6.0, 8.0).
Sub-Mariner #30 (1970) value — Ungraded $14 · Grade 6.0 $23 · Grade 8.0 $57. Prices updated September 2026.
Series · Sub Mariner
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Value by grade
$14
Ungraded
+64%
$23
Grade 6.0
4.1×
$57
Grade 8.0
Real sold prices per grade — the Grade 8.0 premium on this card is 4.1× raw.
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Item details
- Series
- Sub Mariner
Sub-Mariner #30 (1970) comic value
An ungraded copy of Sub-Mariner #30 (1970) averages around $14. A CGC 6.0 runs about $23, and a CGC 8.0 commands $57.
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 | $14 | eBay sold comps |
| Grade 6.0 | $23 | eBay sold comps |
| Grade 8.0 | $57 | eBay sold comps |
Frequently asked questions
- What is the starting resale value for an ungraded Sub-Mariner #30 (1970)?
- An ungraded Sub-Mariner #30 (1970) can be valued starting around $12.
- How much more is a Grade 8.0 version worth compared to an ungraded one?
- A Grade 8.0 version is valued at $57, significantly higher than the $12 starting price for ungraded pieces.
- What is the price point for a Grade 6.0 Sub-Mariner #30?
- The Grade 6.0 condition for the Sub-Mariner #30 (1970) is valued at $23.