Supergirl #21 (2018) — Comic Book Value
SupergirlWhat Supergirl #21 (2018) is worth — ungraded and CGC graded (6.0, 8.0).
Supergirl #21 (2018) value — Ungraded $2 · Grade 6.0 $6 · Grade 8.0 $11. Prices updated August 2026.
Real sold prices per grade — the Grade 8.0 premium on this card is 5.5× 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 #21 (2018) comic value
An ungraded copy of Supergirl #21 (2018) averages around $2. A CGC 6.0 runs about $6, and a CGC 8.0 commands $11.
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 | $2 | eBay sold comps |
| Grade 6.0 | $6 | eBay sold comps |
| Grade 8.0 | $11 | eBay sold comps |
Frequently asked questions
- What is the starting price for Supergirl #21 (2018)?
- Ungraded copies of Supergirl #21 (2018) are available for purchase.
- How much is a Grade 8.0 copy of Supergirl #21?
- A Grade 8.0 copy of Supergirl #21 is listed for $11.
- Is there a lower-graded option available for this comic?
- Yes, a Grade 6.0 copy of Supergirl #21 is available for $6.