They say the US actress agreed to be his wife during a camping trip in the Botswana bush.
Helicopter pilot Harry flew his lover out to a secret spot where he proposed beneath the stars.
But the news won’t be made official by Buckingham Palace until the Queen has given her permission for the match – so the £100,000 engagement ring Harry has had made from a piece of his mother Princess Diana’s jewellery will stay in its box for now.
GETTYTHEIR SECRET: Meghan agreed to be Harry's wife while camping out in the Botswana bush
Our sources revealed Harry instead marked the occasion with meaningful Zulu “betrothal” bracelets.
“Harry’s told his friends he’s hoping to make the official announcement in September”A source close to Harry
He asked his close pal Prince Seeiso of Lesotho to work with King Goodwill – the king of the Zulus in Africa – and his wife Queen Manfombi on the beadwork.
Harry and Meghan both already wear blue, white and black Zulu beads as a symbol of their love for each other.
The new symbolic bracelets will feature a pattern that denotes their status as “married”.
GETTYROMANTIC: Harry flew Meghan out to a secret spot where he proposed beneath the stars
ALAMYBRACLETS: Harry and Meghan both already wear beads as a symbol of their love
In Zulu culture, black beads convey marriage, blue faithfulness and white spiritual love.
A source close to Harry told the Daily Star Sunday: “The world is watching, so the royal red tape needs to be adhered to.
"Meghan won’t be landing at Heathrow with a giant rock on her finger.
"Harry’s told his friends he’s hoping to make the official announcement in September.
“The setting and the bracelets were just so special to Harry.
“He has always felt close to Diana in Africa and it was she who taught him about the meaning of the tribal beads as she spent so much time there.
“Harry feels like he can be himself in Africa and the whole proposal was the private, free and expressive moment he had hoped for – made all the more so by keeping it as ‘their secret’ for a few weeks.”
GETTYLOVE: Ecstatic Meghan called her mother on Facetime to break the news as soon as they returned
Pals say the couple will celebrate with friends at an engagement party when they return home.
Ecstatic Meghan called her mother on Facetime to break the news as soon as the lovebirds returned home.
Harry told his brother William and his closest friend and confidante “Straubs” – Thomas Van Straubenzee, who he has known since they were seven year olds at Ludgrove Preparatory School.
Harry met Prince Seeiso in 2006 on his gap year in Lesotho. They later founded the Sentebale charity together.
GETTYROMANTIC SETTING: Harry feels like he can be himself in Africa
Harry is said to have broken the royal tradition of dating for two years before becoming engaged to ensure that his grandfather Prince Philip, 96, can enjoy the wedding.
Harry, 32, and Suits star Meghan, 35, began dating last summer.
Our source said: “Harry and Meghan have only just reached the year milestone, hence Harry’s desire to tread carefully with other royal procedures around marriage.”
Their romance was exclusively revealed to the world by the Daily Star Sunday in November.