The 6 Mitford Sisters, Their Jewelry and a New TV Series

The Mitford sisters, known for their 20th-century aristocratic glamour and political scandal, were not among England’s most gem-laden women. But jewelry did play a role in their outsize public profiles.

“Diana the fascist, Jessica the communist, Unity the Hitler-lover, Nancy the novelist, Deborah the duchess and Pamela the unobtrusive poultry connoisseur” is how Ben Macintyre, a writer for The Times of London, once described the six women.

Now they are the subjects of “Outrageous,” a six-part series scheduled to debut June 18 on BritBox in the United States and Canada and June 19 on U and U&Drama in Britain. The series is set in the 1930s, the era in which they became famous — and infamous — and arrives on the heels of the discovery of a diary kept by Unity, who was obsessed with Hitler and, by her own account, was his lover. Excerpts were published this year by The Daily Mail.

A childish prank involving Unity and Jessica was most likely one of the sisters’ earliest jewelry episodes. “A diamond ring was used to etch both the image of a hammer and sickle and swastika on a window in their childhood home,” Sarah Williams, the writer of “Outrageous,” said in a recent video interview. “They had such a young bond as kids, but they were both rebels, and that bond of rebellion was stronger than their political beliefs. They were absolute extremes.”

The sisters — there also was one brother, Thomas, who was killed in World War II — were the children of David Freeman-Mitford, the second Baron Redesdale, and his wife, Sydney Bowles. While the family was not particularly wealthy, the sisters were schooled at home and then entered society.

“As part of our research, we specifically collected images of jewelry pieces worn by the Mitford girls,” Claire Collins, the costume designer for “Outrageous,” said by email, “and although we couldn’t replicate certain pieces, we were able to use them as a guide.”