Which Altaria GX do you have?
Same name, 11× the price: $4.04 to $46 raw. The difference is printed on the card — it is just not somewhere most people think to look.
Charisma of the Cracked Sky · #108
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$46
72% gem
GX Ultra Shiny · #239
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$25
50% gem
Hidden Fates · #SV77
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$21
61% gem
Charisma of the Cracked Sky · #100
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$14
71% gem
Dragon Majesty · #41
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$5.75
63% gem
Charisma of the Cracked Sky · #061
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$4.04
74% gem
We have no hand-checked note for these printings yet, so the guidance above is the general rule rather than something specific to this card.
Prices are raw market value. Click a printing for its full grading verdict — the gem rate, the fees and whether it beats selling raw.