A Swiss tech heiress is selling her collection of 60,000 Pokemon cards which experts believe could be worth as much as £50million.
Jolina Gisèle, the so-called Pokemon princess, started collecting the trading cards when she was just seven years old and she has since accumulated what is believed to be the largest collection of Pokemon cards in the world.
Amongst her treasure trove, Ms Gisèle has cards including the shadowless Charizard which can sell for a whopping £740,000.
The collection also includes 180 Mews and Mewtwos, 208 Charizards and 260 Pikachus as well as two highly prized 'illustrator' editions.
Earlier this year, influencer Logan Paul sold his ultra-rare Pikachu Illustrator card to venture capitalist AJ Scaramucci, son of financier and former White House communications director Anthony Scaramucci, for an eye-watering £12million.
The 20-year-old Ms Gisèle's parents are more than aware of how valuable the collection has become with the vast bulk of the cards allegedly stored in a high-security vault at an undisclosed location where almost no one is permitted to view them.
Speaking on condition of anonymity, Ms Gisèle's father told The Times he was not sure how much the family had spent on the cards since the family began buying them in 2013.
'Jolina and I developed an enthusiasm for Pokémon... It became a passion between my daughter and me. We started asking ourselves if it would be possible to acquire all the cards,' he said.
Pictured: The so-called Pokemon princess,Jolina Gisèle, and a model pose with her collection of 60,000 Pokemon cards
Pictured: A shadowless Charizard card similar to the one in Jolina Gisèle's collection. The cards can sell for a whopping £740,000
Pictured: An ultra-rare Pikachu Illustrator Pokemon card similar to the one which sold for an eye-watering £12million in February
Until the mid-2010s, the collection was fairly modest but after that the father and daughter started seeking out increasingly unusual and precious cards on eBay.
Since the pandemic, the market for vintage Pokemon cards has grown exponentially and the value of the collection is likely to be dramatically higher than it was a decade ago.
Just in time to coincide with the upcoming 30th anniversary of the release of the first Pokemon games, the father and daughter have decided to sell their collection.
Explaining their decision, the father said: 'We've seen it enough times, and it gives you a good feeling. You can take an hour to look at it. I've often shown it to children.
'It was fun. But since it became so valuable, it's been locked away and it's not the same. In the meantime, my daughter has other interests. There's no point in keeping it locked away in a high-security vault.'
Currently, Essex brothers Owen and Conner Grey hold the Guinness World Record with 43,339 Pokémon cards but if Ms Gisèle's cards are real she will smash that record by nearly 20,000.
However, the sheer number of cards in her collection has raised some scepticism partly because it is so difficult to verify.
Thomas Kovacs, a professional Pokémon card trader and owner of Amazingtoys, has viewed part of the collection himself and estimated it might be worth well over £50 million in total, as some cards are valued at more than £1 million.
He believes there is a pool of prospective buyers who would be willing to pay a high eight-figure sum for the whole collection, and the family could demand an even larger price if they so desired.