Harriet Sperling's Engagement Ring Links to Queen Elizabeth's Historic Jeweler

When Peter Phillips selected an engagement ring for Harriet Sperling, he walked into Pragnell on Mayfair's Mount Street and walked out with something far more layered than a piece of jewelry. The diamond trilogy ring he chose, featuring a central diamond flanked by two side stones, came from the same jeweler that made his late grandmother's engagement ring nearly 80 years ago.

The late Queen's ring, which features a three-carat round brilliant-cut diamond flanked by 10 smaller pavé diamonds, was created by Philip Antrobus, a jeweler that was later acquired by Pragnell. The platinum setting was commissioned by Prince Philip in 1946 with stones that carried their own remarkable provenance: all of the diamonds in the ring were taken from a tiara that had belonged to his mother, Princess Alice of Battenberg. Philip Antrobus was established in 1815 and marked its place in history by creating Queen Elizabeth's engagement ring. In 1991, Pragnell acquired Antrobus and inherited the company's extensive archive of designs.

The ring chosen for Sperling is a classic trilogy design, with a central oval or round diamond gracefully flanked by trapeze- or triangular-cut side stones. It is a distinct composition from the Queen's pavé-ringed solitaire, but the shared maker gives it a quiet, deliberate resonance. Harriet's ring is not only visually stunning, but it has links to Peter's late grandmother, Queen Elizabeth.

Emily Nash of Hello! magazine said, "Peter was the late Queen's eldest grandson and they had a very close bond, so this is a lovely connection to her own story."

Peter Phillips and Harriet Sperling announced their engagement on August 1, 2025. Peter proposed to NHS paediatric nurse Harriet over the summer, and Hello! revealed their joyful news shortly afterwards, sharing two photos that showed the couple standing in a field, with Harriet's diamond ring on display. Harriet works as a Pediatric Nurse Specialist for the National Health Service at Evelina London Children's Hospital. The wedding will take place on June 6 in a private ceremony at All Saints Church in Kemble, Cirencester. Phillips proposed to Sperling last August after the couple made their public debut in May 2024.

The Pragnell choice tells its own story about how royal families signal continuity without imitation. Sperling's trilogy ring makes no attempt to echo the Queen's round brilliant solitaire, yet the provenance of the house anchors it to the same lineage. For a man who is the Queen's eldest grandchild, the selection of Pragnell was as much an act of remembrance as it was of commission.