Queen Elizabeth’s Grandson Proposes With a $10,000-Plus Engagement Ring That Has a Surprising Connection to the Royal Family

Phillips is the son of Princess Anne, Queen Elizabeth II’s only daughter.

Peter Phillips and Harriet Sperling on July 11, 2025.Credit: Getty Images

Peter Phillips recently proposed to his fiancée, nurse Harriet Sperling.
The ring he purchased for her is likely worth over $10,000.
It comes from a jeweler with connections to the British royal family.

Queen Elizabeth II would’ve likely been a fan of her grandson’s engagement ring for his new fiancée, Harriet Sperling. Last week, Peter Phillips, son of the late monarch’s only daughter Princess Anne, confirmed that he popped the question to Sperling, his girlfriend of over a year.

“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,” a statement issued on behalf of the couple, first published by Hello!, reads.

Peter Phillips and Harriet Sperling on July 11, 2025.Getty Images

“Both families were informed jointly of the announcement and were delighted with the wonderful news of their engagement. 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,” the statement concludes.

Sperling, a nurse for England’s National Health Service, received a ring with special ties to the royal family: it was designed by the jeweler Pragnell. Opened by George Pragnell in 1954, he provided jewelry to Queen Elizabeth’s grandmother, Queen Mary.

Peter Phillips’s great-grandmother, Queen Mary of Teck, in 1935.Getty Images

“As a young man, he was instructed to entertain the young Princesses Elizabeth and Margaret as their grandmother perused the jewels on display,” an excerpt from Pragnell’s website reads.

Pragnell would eventually acquire the jewelry house Philip Antrobus, who created Queen Elizabeth’s three-carat diamond ring in 1946. She also wore an Antrobus bracelet for her wedding to Prince Philip a year later.

Queen Elizabeth II and Prince Philip their wedding day in 1947.Getty Images

Tobias Kormind, cofounder of the jewelry brand 77 Diamonds, told People that Sperling’s ring “appears to be a timeless trilogy design, likely showcasing a central oval or round diamond, flanked by trapeze-cut or triangular side stones.”

“While an exact valuation would require a clearer image and knowledge of its provenance, a similar design with diamonds of comparable quality and size crafted at 77 Diamonds would typically be priced from around £10,000 (equivalent to over $13,200 USD) with the final price reflecting individual choices in cut, carat, and craftsmanship,” he added.