Flash #21 (2017) — Comic Book Value

Flash

What Flash #21 (2017) is worth — ungraded and CGC graded (6.0, 8.0).

Flash #21 (2017) value — Ungraded $6 · Grade 6.0 $9 · Grade 8.0 $13. Prices updated July 2026.

Series · Flash
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Value by grade
$6
Ungraded
+50%
$9
Grade 6.0
2.2×
$13
Grade 8.0

Real sold prices per grade — the Grade 8.0 premium on this card is 2.2× raw.

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Which version do you have?

For the absolute cheapest way to own Flash #21, grab the Standard version listed at $2. The premium versions like Newsstand ($10) or International ($7) offer higher perceived value, likely through better distribution or packaging, suggesting a more sought-after edition. If budget is primary, stick to the $2 or $3 Standard copies. Collectors prioritizing rarity or display value should pay the premium for Newsstand or International.

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Item details

Series
Flash

Flash #21 (2017) comic value

An ungraded copy of Flash #21 (2017) averages around $6. A CGC 6.0 runs about $9, and a CGC 8.0 commands $13.

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

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ConditionValueBased on
Ungraded$6eBay sold comps
Grade 6.0$9eBay sold comps
Grade 8.0$13eBay sold comps

Frequently asked questions

What is the starting price for Flash #21 (2017)?
The ungraded version of Flash #21 (2017) is currently valued at $7.
How much more is a higher-graded copy worth?
A Grade 8.0 copy of Flash #21 (2017) is valued at $13, compared to the ungraded price.
Does the condition significantly affect the resale value of this Flash series card?
Yes, the value increases notably with grading; a Grade 8.0 is priced higher than the ungraded version.

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