Explore the British Royal Family's Dazzling Collection

10. Diamond Pendant

The Honorable Margaret Elphinstone: A Royal Connection Worn by: The Hon. Margaret Elphinstone

Belonging to: Unknown

Estimated Value: $25,000–$50,000*

The Honorable Margaret Elphinstone is notable for being one of Queen Elizabeth II's thirty-one first cousins. Her close relationship with Princess Margaret and the Queen has led many to describe her as the Queen's best friend. This bond was so strong that the Queen Mother affectionately referred to Margaret as her "third daughter" during their shared summers at Balmoral, highlighting the deep familial ties and friendships within the royal circle.

 

The Diamond Brooch of Margaret Elphinstone Source: ©Max Mumby/Indigo/Getty Images

During World War II, Margaret Elphinstone resided in Windsor Castle and Buckingham Palace while preparing to serve as a secretary for MI6. Her close ties to the royal family were further highlighted when she served as a bridesmaid at the wedding of Princess Elizabeth and Prince Philip in 1947.

Margaret's affinity for jewelry is evident in her choice of an impressive diamond brooch, which she elegantly pairs with her button-up coat. This striking piece not only showcases her taste but also reflects the opulence often associated with royal accessories.