Which Nidoqueen Holo do you have?
Same name, 24× the price: $13 to $321 raw. The difference is printed on the card — it is just not somewhere most people think to look.
Base Set 2 · #12
A set symbol in the lower right of the illustration. The 1999 Base Set printings have no set symbol at all, so its presence settles it immediately.
$19
0.9% gem
Skyridge · #H21
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.
$321
23% gem
Jungle 1st Edition · #7
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.
$61
3% gem
Jungle · #7
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.
$20
1.1% gem
Dragon Frontiers · #7
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.
$13
7.1% gem
Prices are raw market value. Click a printing for its full grading verdict — the gem rate, the fees and whether it beats selling raw.