The Duke and the Duchess of Sussex arrived at the Consular House in Nuku & alofa, capital of Tonga, for a private audience with King Tupou VI and Queen Nanasipau & # 39; u.
Meghan Markle looked radiant in a white dress to the floor of Theia Couture with short sleeves and beaded details on the shoulders.
The future mother was wearing her hair to show off a brilliant set of diamond earrings.
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Upon the arrival of the Duke and the Duchess, a band played by Imagine by John Lennon.
The couple attended a reception and official dinner, with traditional entertainment.
"It was very nice to see so many Tongan flags."
While the pregnant duchess was advised to "take care" by a guest at the reception.
Among the dignitaries Harry and Meghan met were Judge Charles Cato, a judge from New Zealand, and his Russian wife, Miriam.
Ms. Cato said, "I asked her, how do you feel?" She answered "Very well, thank you." I said "There are no visible signs yet!"
That prompted the Duchess to look at her dress and laugh in agreement.
Ms. Cato, 41, added: "As a doctor, I was a little worried about her doing all these long trips, I am a mother of two, I know how she feels.
"I asked her to take care of herself, she promised to do it."
Meghan's stunning long dress is her third outfit of the day: she has already worn her real baby outfit with a green dress by Jason Wu and a red self-portrait dress.
But the Duchess suffered a wardrobe failure when she arrived on the tenth day of her royal tour after the price tag was still attached to her bright red £ 345 dress.
The red dress reflected the national flag of Tonga.
Meghan and Harry arrived in the Pacific nation for the last leg of their earlier tour today.
The royal couple left Nadi in western Fiji on a Qantas charter plane for Tonga, and was met at Fua & amotu airport by Princess Angelika Latufuipeka.
Meghan and Harry walked the red carpet, accompanied by the traditional entertainment of the Pelehake villagers.
The students had been given a day off and lined the streets from the airport to the capital of Nuku & alofa, waving flags and cheering as the convoy made the 40-minute trip.
At the beginning of the day, before leaving Fiji, the Duke revealed a memorial for a British-Fijian soldier who died at the Battle of Mirbat.
Sergeant Talaiasi Labalaba of the Special Air Service (SAS) arrested 250 insurgents with a 25-pound field gun after being shot in the jaw during the Oman battle in 1972.
He was part of a nine-member SAS team based in Mirbat when they were attacked by the Popular Front for the Liberation of the Occupied Arab Gulf (PFLOAG).
Sergeant Labalaba was mentioned posthumously in the offices for his bravery in the battle.
After the ceremony, Fiji's President, Major General Jioji Konrote, gave a short speech in which he thanked the royal couple for their visit and congratulated them on their news about babies.
He said: "Thank you for coming to Fiji and honoring us with your very welcome but very short visit.
"It's good to know that you promise to come back, that Almighty God be with you now and in the future."
Harry also delivered a speech, beginning with the traditional Fijian salute "Bull & # 39; and adding: "Thanks to the people of Fiji for the warm welcome we received during our visit.
"The Duchess and I are leaving with special memories of your beautiful country and we hope to return in the future."