A dazzling piece of British political and design history went under the hammer in London, as a rare Cartier turquoise and diamond tiara formerly owned by Nancy, Viscountess Astor sold for an impressive $1.1 million (£889,400)—more than double its high estimate of $434,000 (£350,000)—at Bonhams.
The tiara, a masterpiece of Art Deco elegance, is adorned with a central old brilliant-cut diamond surrounded by an array of old brilliant, rose, and single-cut diamonds. Its most distinctive feature: three fluted turquoise plumes, rising from diamond-set stems, echoing the Eastern design influences—Egyptian, Persian, and Indian—that captivated Cartier’s creative direction during the early 20th century.
Dating back to circa 1930, the tiara was originally commissioned by Lord Astor from Cartier London, a branch then considered to be at the zenith of its artistry. It had remained out of public view for nearly a century.
Its original owner, Nancy Astor (1879–1964), holds a special place in British political history as the first woman to take a seat in the House of Commons, following her 1919 election. An American-born socialite turned politician, Astor was known not only for her pioneering role in Parliament—championing causes such as raising the legal drinking age and expanding women’s suffrage—but also for her vibrant presence as a hostess to Britain’s elite at Cliveden, the Astor family estate.
Jean Ghika, Bonhams’ Global Head of Jewellery, commented on the significance of the sale:
“This tiara represents a remarkable convergence of history, craftsmanship, and cultural exchange. Its turquoise plumes and diamond detailing embody Cartier London’s golden era—when global influences were seamlessly woven into fine jewellery. That it belonged to a trailblazing woman like Nancy Astor only adds to its legacy.”
The tiara’s dramatic sale result underscores the growing demand for historic jewels with provenance, especially those tied to iconic women and storied eras.
Disclaimer: This information has been collected through secondary research and TJM Media Pvt Ltd. is not responsible for any errors in the same.
