Eira Thomas’s company has used radical new methods to find some of the biggest uncut gems in history.

A young Englishman got mixed up in a white-supremacist movement. Then he learned of a plot to kill a politician.

The U.K. is in a panic over voters’ decision to withdraw from the E.U. But the pugnacious millionaire whose donations—and Trumpian scare tactics—helped sway Britons has no regrets.

A P.R. company that worked with dictators and oligarchs deliberately inflamed racial tensions in South Africa—and destroyed itself in the process.

Anna Lyndsey’s memoir of extreme light sensitivity got rave reviews—but doctors have doubts about her story.

Almost every weekday between the fall of 2011 and early 2015, a Russian broker named Igor Volkov called the equities desk of Deutsche Bank’s Moscow headquarters. Volkov would speak to a sales trader—often, a young woman named Dina Maksutova—and ask her to place two trades simultaneously. In one, he would use Russian rubles to buy[…]

Witanhurst, London’s largest private house, was built between 1913 and 1920 on an eleven-acre plot in Highgate, a wealthy hilltop neighborhood north of the city center. First owned by Arthur Crosfield, an English soap magnate, the mansion was designed in the Queen Anne style and contained twenty-five bedrooms, a seventy-foot-long ballroom, and a glass rotunda;[…]