Every Sylveon card we price, most valuable first. Prices are what copies actually sold for, updated daily.
What a Sylveon card is worth
The most valuable Sylveon on this list is Sylveon ex from Prismatic Evolutions at $503.59£379.03€443.50, and the 43 priced copies across 23 sets are worth $2.9k£2.2k€2.5k 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.
Sylveon is printed in Japanese as well: 32 cards across 16 sets, the most valuable of them Sylveon EX from PokeKyun Collection at $621.59£467.84€547.42. 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 Sylveon sold for $8,700£6,548€7,662. reverse holo printings are priced separately from the standard card, because they do not trade at the same money. Rarities here include Secret Rare, Special Illustration Rare.
If you are trying to identify which Sylveon 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: Prismatic Evolutions, Evolving Skies, Prize Pack Series Cards.