Kramaric and Croatia will face England in the World Cup semis tomorrow.
"My stay in England was a great story," said Kramaric. "It was my first time outside Croatia and everything was really new.
"I didn't play much and it was difficult to get into the team, because we were playing so well. No coach would have changed a winning team in those circumstances.
"It was a great experience I could talk about for days and days. But I hope to be able to talk about Croatia and this World Cup for years and years.
"England were one of the favourites for me before the tournament, because they are young and hungry with no international movie stars.
"Jamie Vardy is a great guy. We were together for that magnificent story at Leicester that I will remember always."