Meghan Markle's half-sister has confirmed she is writing a book about her called 'The Diary of Princess Pushy's Sister'.

Meghan Markle

Meghan Markle

Samantha Grant - who hasn't spoken to the 'Suits' star in nine years - insists the tome will be a "beautiful, warm, witty story" about growing up with the 36-year-old actress, who is dating Prince Harry, in the US.

Speaking from Florida, she said: "Well, it is true that I'm writing a book and the title is accurate, what is not true [is] this unbelievable swell that's been created that it's some sort of slamming 'tell-all'.

"First of all it's only a tell-all in that I go through and recount some of the beautiful nuances of our lives, our family home.

"But more importantly it has to do with the inter-racial evolution of this country through the lens of my life and my family since the Civil Rights Act until present and how that intersects with this recent event with my sister, you know, my feelings about it, my family's feelings about it and how sad it was going through it all. But it's more of a beautiful, warm, witty story of our lives and my life."

Samantha, 52, - who shares the same father, Thomas Markle, as Meghan - insists her sibling is "absolutely lovely" and is convinced the brunette beauty will "surprise" people with how nice she is.

Speaking on 'Good Morning Britain', she added: "In my view you are either sisters or not and she's my sister. She's absolutely lovely. She's strong, educated and graceful and she will be a compliment to her work.

"The British people and the world will be surprised by how graceful and lovely she is.

"She will bring so much to her role as part of the royal family. The world will be surprised."

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