Every Thievul card we price, most valuable first. Prices are what copies actually sold for, updated daily.
What a Thievul card is worth
The most valuable Thievul on this list is Thievul from Crown Zenith: Galarian Gallery at $2.69£2.02€2.37, and the 11 priced copies across 10 sets are worth $9£7€8 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.
Thievul is printed in Japanese as well: 15 cards across 10 sets, the most valuable of them Thievul from Zacian & Zamazenta vs Eternatus Special Deck Set at $2.50£1.88€2.20. 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 Thievul sold for $149.99£112.89€132.09. reverse holo printings are priced separately from the standard card, because they do not trade at the same money. Rarities here include Illustration Rare.
If you are trying to identify which Thievul 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: Crown Zenith: Galarian Gallery, Shining Fates: Shiny Vault, Pitch Black.