Which Umbreon ex do you have?
Same name, 311× the price: $4.11 to $1,277 raw. The difference is printed on the card — it is just not somewhere most people think to look.
Prismatic Evolutions · #161
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.
$1,277
30% gem
Unseen Forces · #112
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.
$482
2.5% gem
Terastal Festival ex · #217
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.
$369
87% gem
Scarlet & Violet Promos · #SVP 176
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.
$39
57% gem
Fates Collide · #55
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.
$34
21% gem
Prismatic Evolutions · #060
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.
$9.15
44% gem
Terastal Festival ex · #093
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.
$4.11
87% 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.