Kris Jenner's struggle to come to terms with Caitlyn

Kris Jenner found it "difficult" to come to terms with her ex-husband's transition.

The 60-year-old reality star is slowly coming to terms with the changes made by Caitlyn Jenner - who was known as Bruce during their marriage - and credits her faith in helping her accept the situation for the sake of their kids Kendall and Kylie Jenner.

She said: "I just have to let it go. And try to be tolerant.

"[With] prayer. God. You know, just trying to understand. It takes time.

"But time is a wonderful healer. And we have two children together. It's important for my kids to see our family strong and united."

The 'Keeping Up With the Kardashians' star admitted she didn't have much experience with the transgender community until the former Olympian's gender reassignment last year.

She told the new issue of America's Harper's Bazaar magazine: "I never really thought about it before. And I'd never known anyone who was transgender. I didn't even know what the word meant.

"Because there's transgender and transsexual ... I just didn't know much about it. So...I definitely got a big education."

Meanwhile, Kris also spoke of her pride in "genius" son-in-law Kanye West, who has children North, two, and Saint, eight weeks, with her daughter Kim Kardashian West.

She said: "I couldn't be prouder. One thing people don't realise about him is, not only is he so beyond talented, but he's also a genius.

"And when he's here, he's so present. He's the best daddy, and the best husband. Kim is so lucky to have him."