Which Volkner do you have?
Same name, 14× the price: $1.49 to $21 raw. The difference is printed on the card — it is just not somewhere most people think to look.
Ultra Moon · #071
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
80% gem
GX Ultra Shiny · #133
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.
$5.98
no PSA data
Tag Bolt · #095
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.
$2.87
71% gem
Tag Team GX All Stars · #153
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.
$1.79
<0.1% gem
Ultra Prism · #135
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.
$1.49
40% gem
Ultra Moon · #062
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.
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<0.1% gem
GX Starter Decks · #120
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.
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no PSA data
Flareon-GX, Vaporeon-GX & Jolteon-GX Starter Sets · #034
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.
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no PSA data
Tag Team GX Premium Trainer Box · #029
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.
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no PSA data
Tag Team GX Deck Build Box · #025
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.
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no PSA data
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.