Meghan Markle apparently had no idea that wearing a certain necklace would get her in trouble.

It was December 2016 when the former “Suits” star was photographed in an Ani + Wren 14-carat gold chain with the initials “H” — referring to then-boyfriend Prince Harry — and “M.” However, a concerned palace aide disapproved of the jewelry.

The claim is being made in the upcoming bombshell book “Finding Freedom,” written by royal reporters Omid Scobie and Carolyn Durand. Numerous palace insiders came forward to the two journalists and detailed what led to the Duke and Duchess of Sussex’s departure as senior members of the British royal family.

The couple currently resides in Markle’s native Los Angeles with their son, Archie.

“She was advised that wearing such a necklace only served to encourage the photographers to keep pursuing such images — and new headlines,” Scobie and Duran wrote in their book, which was excerpted in this week’s issue of People magazine.

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Meghan Markle became the Duchess of Sussex when she married Britain's Prince Harry. (AP)

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According to the book, the 38-year-old “said little during the call” with one senior Kensington Palace aide, “choosing instead to simply listen to the counsel.”

“But after hanging up, she felt frustrated and emotional,” the book continued “While she knew the aide had good intentions, the surreal experience of having someone from her boyfriend’s office tell her what kind of jewelry to wear or not to smile at a photographer was too much.”

The book claimed that the “distraught” actress called a friend and said, “I can’t win. They make it out like I’m to blame for these pictures, that it looks like I’m encouraging them, that me even acknowledging the cameras may not be sending the right message. I don’t know what to say. It was only yesterday that people online were saying I look miserable in pictures because I was trying to just ignore the [photographer].”

The authors shared that Markle “felt damned if she did and damned if she didn’t.”

While it was initially reported that Harry and Markle cooperated with the authors, reps for the couple confirmed to Fox News that they played no part in the upcoming tell-all.

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Prince Harry and Meghan, the Duke and Duchess of Sussex arrive at the annual Endeavour Fund Awards in London on March 5, 2020. (AP Photo/Kirsty Wigglesworth)

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“The Duke and Duchess of Sussex were not interviewed and did not contribute to ‘Finding Freedom,’” said the statement. “This book is based on the authors’ own experiences as members of the royal press corps and heir own independent reporting.”

According to the book’s description, “Finding Freedom” aims to set the record straight about the royal couple.

“For the very first time, ‘Finding Freedom’ goes beyond the headlines to reveal unknown details of Harry and Meghan’s life together, dispelling the many rumors and misconceptions that plague the couple on both sides of the pond,” read the book's description. “As members of the select group of reporters that cover the British Royal Family and their engagements, Omid Scobie and Carolyn Durand have witnessed the young couple’s lives as few outsiders can.

“With unique access and written with the participation of those closest to the couple, ‘Finding Freedom’ is an honest, up-close, and disarming portrait of a confident, influential, and forward-thinking couple who are unafraid to break with tradition, determined to create a new path away from the spotlight, and dedicate to building a humanitarian legacy that will make a profound difference in the world,” the description added.

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The Duke and Duchess of Sussex will be splitting their time between the U.K. and North America. (Photo by Karwai Tang/WireImage/Getty)

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In a statement sent to Fox News, the book publisher revealed Scobie is a London-based writer, royal editor for Harper’s Bazaar, an ABC News contributor, “Good Morning America” regular and host of ABC’s popular royal podcast, “The Heir Pod.” Durand is an Emmy Award-winning producer and writer who has spent nearly two decades working in London covering Buckingham Palace, Kensington Palace, Clarence House and other major international events. During that time, she produced multiple interviews with members of the royal family including Harry. She contributes to O, The Oprah Magazine, Elle magazine and other American and British news outlets.

“The aim of this book is to portray the real Harry and Meghan, a couple who continue to inspire many around the world through their humanitarian and charitable work but are often inaccurately portrayed," they wrote in a statement. "Our mission has been motivated by a desire to tell an accurate version of their journey and finally present the truth of misreported stories that have become gospel simply because of the amount of times they have been repeated. It is thanks to our sources that we have been able to share the definitive story of the Duke and Duchess of Sussex."

“Finding Freedom" is set to be released by Dey Street Books on August 11.