This is the bizarre jewellery rule that Meghan Markle and Kate Middleton have to follow

This is the bizarre jewellery rule that Meghan Markle and Kate Middleton have to follow

While they may be privy to the very finest things in life now, Meghan Markle and Kate Middleton still have to adhere to royal protocol.

The duchesses are rarely seen bare-legged, and the Queen's disdain for pantsuits means that their wardrobes are mostly comprised of dresses and skirts.

The erstwhile actress, however, has been known to skirt royal tradition. Meghan didn't wear pantyhose to her official engagement photo-call, and just last week, she stepped out in a fitted Altuzarra pantsuit, despite Her Royal Highness's aversion to the style. In fact, People magazine reports that the Duchess of Sussex "has found certain rules in the royal household difficult to understand, like the fact that the Queen prefers women in dresses or skirts rather than trouser suits, and is often asking Harry why things have to be done in a certain way."

"I think she finds it a little frustrating at times, but this is her new life, and she has to deal with it," the insider continued.

Now, it appears that Meghan Markle and Kate Middleton have to follow certain rules when it comes to their jewellery choices. Certainly, while diamonds may be a girl's best friend, they're apparently not until the sun goes down for members of Kensington Palace.

Putting aside engagement rings, tiaras and any religious accessories, it's purportedly an unspoken rule that the Queen, Meghan Markle and Kate Middleton refrain from donning their bigger jewels before 6pm.

In an interview with News.com.au, royal etiquette expert Myka Meier explained: "At night, you’ll see the diamonds come out, and that’s in order to not come across as flashy in your appearance."

There are some notable exceptions, however - like the Duchesses engagement rings, and the fact that many female members of the royal family are partial to wearing diamond brooches to afternoon events.

"Other jewels are worn pre-6pm. Before 6pm, you’ll see metallics, gemstones, pearls, sapphires," Meier concluded.

The Duchess of Sussex's style has certainly evolved since joining the royal family. In all of her official royal engagements to date, the 37-year-old has opted to wear more traditional designs with a muted colour palette.

This is especially evident when she's with the Queen. While Her Majesty is rarely seen out of her signature brights, Meghan chose to don a blush pink Carolina Herrera dress at Trooping the Colour. And then, at their solo outing to Chester, the Queen wore a lime green ensemble, whereas Megan wore a nude Givenchy dress.

This is all to ensure that the monarch takes centre stage at public outings. A fact confirmed by fashion commentator, Lucas Armitage. Speaking to the Daily Mail, he stated: "I feel this is a clever styling tactic as it will always work with the Queen's look; she is known and applauded for her use of bright fun colours."

Well, the more you know, eh?