* Condition: A card's condition (mint, near mint, played, etc.) heavily influences its value.
* Rarity: Cards with extremely low print runs are naturally more valuable.
* Demand: Popular and sought-after cards will always be more expensive.
* Market trends: The Pokemon card market is constantly changing, with some cards rising in value while others decline.
However, here are some of the most expensive Pokemon cards that have sold at auction or through private transactions in recent years:
* Pikachu Illustrator (No Rarity Symbol): This card, awarded to winners of a 1997 Japanese contest, has sold for millions of dollars. It is widely considered the most expensive Pokemon card in the world.
* No Rarity Symbol Charizard (Japanese) (1st Edition): This card, printed without the rarity symbol, is highly sought-after and has sold for significant sums.
* Pikachu (1st Edition) (Japanese) (No Rarity Symbol): This card shares a similar history to the No Rarity Charizard, making it highly valuable.
* Gold Star Espeon (Japanese) (1st Edition): Gold Star cards are rare and popular, with Espeon being particularly sought-after.
* Gold Star Umbreon (Japanese) (1st Edition): Like Espeon, Umbreon is a highly desirable Gold Star card.
Note: The actual value of these cards can vary widely depending on their condition, so it's best to consult reputable collectors and card grading services for up-to-date pricing.
To get an idea of current prices:
* Check online auction websites: Sites like eBay and Heritage Auctions often list rare Pokemon cards.
* Consult reputable pricing guides: Websites like TCGPlayer and Price Charting offer pricing information for Pokemon cards.
* Visit card grading services: Services like PSA and Beckett Grading Services can provide accurate assessments of a card's condition and value.
Always remember that the Pokemon card market is constantly changing. What is expensive today may not be as valuable tomorrow, so it's essential to stay informed and do your research before buying or selling.