Groudon Star
Holon Research Tower · Pokemon · #056 · Shiny Rare
Groudon Star (#056) is a Shiny Rare card from the Holon Research Tower set in Pokemon. Its current raw market value is $445.15, last updated June 28, 2026. A PSA 10 graded copy runs about $2156.90 — roughly 4.8× the raw price. It's one of the most valuable cards in the set, ranking #4 of 86 priced cards.
Market Price
Source: pricecharting · Updated June 28, 2026
Graded Prices
Card Details
- Game
- Pokemon
- Set
- Holon Research Tower
- Card Number
- 056
- Rarity
- Shiny Rare
- Language
- Japanese
Frequently asked questions
How much is Groudon Star worth?
Groudon Star from Holon Research Tower (Pokemon) has a current raw market price of $445.15, last updated June 28, 2026. A PSA 10 graded copy is worth about $2156.90.
Is Groudon Star worth grading?
A PSA 10 Groudon Star is valued around $2156.90 versus $445.15 raw — a premium of roughly 4.8×. Grading tends to pay off when that premium comfortably exceeds grading costs and the card is likely to earn a high grade.
Where can I buy or sell Groudon Star?
You can view current Groudon Star listings on TCGPlayer. VendBuddy tracks live Pokemon market prices so card show vendors can confidently buy and sell Groudon Star and thousands of other cards.












