Every Aggron card we price, most valuable first. Prices are what copies actually sold for, updated daily.
What a Aggron card is worth
The most valuable Aggron on this list is Aggron ex from EX Sandstorm at $113.36£85.32€99.83, and the 21 priced copies across 19 sets are worth $482£363€425 together. Most of that sits in a handful of printings: the older the set and the scarcer the print run, the wider the gap to the rest.
Aggron is printed in Japanese as well: 20 cards across 18 sets, the most valuable of them Aggron from Everyone's Exciting Battle at $145£109.13€127.70. Switch the list above to Japanese to read those, or to Both to rank the two catalogues against each other.
The highest PSA 10 on record for Aggron sold for $2,783£2,094€2,451. reverse holo printings are priced separately from the standard card, because they do not trade at the same money.
If you are trying to identify which Aggron you have, the set name is printed on the card and the collector number sits in the bottom corner. Open the card here and the page carries every printing of it, the graded prices, and whether grading the copy is worth the fee. Sets to start with: EX Sandstorm, EX Crystal Guardians, EX Legend Maker.