Supergirl [Blank] #21 (2018) — Comic Book Value
SupergirlWhat Supergirl [Blank] #21 (2018) is worth — ungraded and CGC graded (6.0, 8.0).
Supergirl [Blank] #21 (2018) value — Ungraded $16 · Grade 6.0 $14 · Grade 8.0 $17. Prices updated August 2026.
Real sold prices per grade — the Grade 8.0 premium on this card is 1.1× raw.
Live on eBay right now
Which version do you have?
If you just want the card, the Standard versions at $1 or $4 are the cheapest way to own Supergirl #21. Paying more for Blank ($16) or Newsstand ($10) gets you a cleaner or more accessible copy. Conner ($5) offers a graded, authenticated piece. Save your money unless you specifically want the premium presentation or higher grade.
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Item details
- Series
- Supergirl
Supergirl [Blank] #21 (2018) comic value
An ungraded copy of Supergirl [Blank] #21 (2018) averages around $16. A CGC 6.0 runs about $14, and a CGC 8.0 commands $17.
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 | $16 | eBay sold comps |
| Grade 6.0 | $14 | eBay sold comps |
| Grade 8.0 | $17 | eBay sold comps |
Frequently asked questions
- What is the current going price for this comic in ungraded condition?
- The ungraded version of Supergirl #21 (2018) is currently listed for $16.
- Is the Grade 6.0 version a good deal compared to other conditions?
- Yes, the Grade 6.0 copy is available for $14, making it a more accessible option than the $17 Grade 8.0.
- How much more is the best graded copy worth?
- The Grade 8.0 copy is priced at $17, which is $3 more than the ungraded version.