It was a tempest in a tiara — courtesy of Meghan Markle and Prince Harry.

Not long before her 2018 wedding to Prince Harry, Meghan Markle wanted Queen Mary’s bandeau tiara fitted while her own private hair stylist was in London.

The only problem, according to a new book about behind-the-scenes tensions between the Palace and Meghan and Harry, was that the Crown Jewels can’t be picked up and tossed around like costume jewelry from Target.

Meghan Markle on her wedding day wearing Queen Mary’s diamond bandeau tiara.
Queen Mary was seen watching a performance at the London Casino in 1949, wearing a diamond bandeau tiara.

The Queen’s dresser, Angela Kelly, had to explain to Meghan and Harry the strict protocol around the Crown Jewels and how adjustments could not be made without arrangements done carefully in advance.

The pair did not take it well, the Sun reported, citing the upcoming book, “Courtiers: The Hidden Power Behind the Crown,” by veteran Times of London royal correspondent Valentine Low.

Harry reacted badly, according to the book, spewing vitriol at Kelly using “fairly fruity language,” the Sun said.

The Queen’s dresser, Angela Kelly, had to explain to Meghan and Harry the strict protocol around the Crown Jewels.
Meghan Markle wanted Queen Mary’s bandeau tiara fitted while her own private hair stylist was in London, without understanding Crown Jewels protocol.

Kelly, who was upset, allegedly reported his behavior to Queen Elizabeth who “firmly” put Harry “in his place”.

“He had been downright rude”, an aide told author Low.