Speculation that their relationship is heading for marriage has reached fever pitch in recent months.
And Meghan Markle is said to have quit her highly successful role on Suits amid claims she will announce her engagement to Prince Harry before Christmas, reports The Daily Star Sunday.
The American actress, 36, who found fame as feisty paralegal Rachel Zane on the popular US drama is 2011, has reportedly told TV bosses that she will not be returning for the show's eighth season next year.
A source told the website: "Meghan knows she can't really act at the same time as being a princess and is happy to make this career sacrifice.
"She really enjoys her charity work with Unicef and will broaden out her charity commitments when she becomes a full-time royal."