Key Takeaways
- Queen Elizabeth's eldest grandson, Peter Phillips, is engaged to Harriet Sperling.
- The two announced that they had taken the next step in their relationship on August 1, 2025.
- The royal proposed with a three-stone diamond engagement ring that's estimated to cost $42,000.
- While they haven't disclosed when they plan to tie the knot, the two have shared the news of their engagement with King Charles, Queen Camilla, Prince William, and Kate Middleton.
After a year of dating, Peter Phillips and Harriet Sperling are officially engaged. On August 1, 2025, Queen Elizabeth's grandson and the pediatric nurse shared the news with Hello!: "Mr Peter Phillips, the son of HRH The Princess Royal and Captain Mark Phillips and Ms Harriet Sperling, daughter of the late Mr Rupert Sanders and Mrs Mary Sanders of Gloucestershire, have today confirmed their official engagement," read the statement, which was released by Gerard Franklin. In the announcement photo, Harriet donned a white linen ensemble with delicate jewelry while Peter wore a blue-and-white checkered button-down shirt. Surrounded by tall grasses, the soon-to-be newlyweds appeared to pose for the important picture in a country field.
While the engaged duo has yet to release the specific details about the bride's new sparkler, the piece is a timeless choice. "It appears Harriet is wearing a platinum three-stone engagement ring," says Benjamin Khordipour at Estate Diamond Jewelry. "The center stone is a 2.5-carat oval cut diamond, G color, VS1 clarity, flanked by two trillion-cut diamonds. The relatively large side stones give the ring a distinctive, eye-catching appeal. The estimated price is $42,000."
Peter, who is the son of Princess Anne and Captain Mark Phillips, quickly shared the news with other members of the royal family. "Both families were informed jointly of the announcement and were delighted with the wonderful news of their engagement," read the statement shared by Franklin. "Their Majesties The King and Queen, The Prince and Princess of Wales have been informed of the announcement. No date has been officially set for the wedding."
Max Mumby/Indigo / Contributor / Getty Images
Earlier this year, in June, Harriet joined Peter in the carriage procession for the first time during the Royal Ascot, marking the seriousness of their relationship. For the journey, the couple sat next to Anthony Horowitz, an author, and his wife, Jill Green. While Harriet and Peter didn't announce their engagement until this month, the nurse's all-white ensemble at the June event seemed to hint at her future status as a bride.
Even though the Royal Ascot may have been Harriet's first appearance in the royal carriage, over the past few months, she has been spotted next to her partner at a number of high-profile outings, including Wimbledon, Prince William's charity polo match, and the Formula 1 Grand Prix in Bahrain. Such excursions are fitting for the athletic couple, who reportedly first crossed paths at a sporting event with their daughters in 2024, according to Hello!. Peter is the father to two teenage girls, Savannah and Isla, while Harriet is the mother to Georgina. In May of last year, they made their public debut as a couple at the Badminton Horse Trials in Gloucestershire, U.K. Shortly after that event, the royal introduced his then-girlfriend to King Charles and Queen Camilla, fueling speculation that he intended to eventually propose to her.
