The 7 Most Valuable Keldeo-EX Cards
By Ripbin Research · Updated 2026-06-12 · prices from live market data
The most valuable Keldeo-EX card is the 2012 Boundaries Crossed Keldeo-EX #142, worth about $140.80. The top 7 are worth roughly $222.68 combined.
Keldeo-EX cards span everything from affordable base issues to four-figure grails. This list ranks the 7 most valuable Keldeo-EX cards by current ungraded market value — with images, prices and live listings for each.
Number one checks in around $140.80 ungraded. Each entry links to grade-by-grade values (PSA, BGS, CGC, SGC) and current listings.

#12012 Boundaries Crossed Keldeo-EX #142
$140.80Top of the chase: $140.80 for an ungraded copy puts it well clear of the field.






Market snapshot
The top 7 Keldeo-EX cards are worth a combined $222.68 in raw condition. 1 of the top 7 clear the $100.00 mark. Values move with the market — each card page above tracks current prices and live listings.
Frequently asked questions
- What is the most valuable Keldeo-EX card?
- The 2012 Boundaries Crossed Keldeo-EX #142 tops the list at around $140.80 ungraded — graded copies sell for more.
- Are Keldeo-EX cards worth money?
- Yes — the top 7 Keldeo-EX cards alone are worth about $222.68 combined in raw condition.
- Where can I sell Keldeo-EX cards?
- eBay is the most liquid market — each card above links to live listings. You can also scan your cards with Ripbin to track values and receive bids from collectors.