Every Professor Juniper card we price, most valuable first. Prices are what copies actually sold for, updated daily.
What a Professor Juniper card is worth
The most valuable Professor Juniper on this list is Professor Juniper (116 Full Art) from Plasma Freeze at $115.61£87.01€101.81, and the 18 priced copies across 6 sets are worth $175£132€154 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.
Professor Juniper is printed in Japanese as well: 3 cards across 3 sets, the most valuable of them Professor Juniper from Thunder Knuckle at $62£46.66€54.60. 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 Professor Juniper sold for $3,050£2,296€2,686. reverse holo printings are priced separately from the standard card, because they do not trade at the same money.
If you are trying to identify which Professor Juniper 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: Plasma Freeze, Professor Program Promos, World Championship Decks.