Diamonds, erm, crystals are a girl's best friend.

At least, that's the case for Anya Taylor-Joy. In fact, while promoting her latest film Furiosa: A Mad Max Saga at the 2024 Cannes Film Festival, the actress revealed that she doesn't travel without her crystals.

"I don't think that you could ever have too many of them," Anya told E! News in an exclusive interview. "The issue is that I travel with them, and when people lift up my bags, they're like, 'Ugh, it's so heavy. What do you got in there, rocks?' And I'm like, 'Yeah.' It's embarrassing."

The 28-year-old noted that she'll even pack her giant crystals, admitting, "I never look at one and go, 'You're small, you're a travel one.'"

This isn't the first time Anya has shared insight into her wellness rituals.

"I'm such a big believer in cosmic destiny and putting one foot in front of the other, and my feet led me to that film," she told Vanity Fair in 2019, referencing her breakout role in The Witch. "It's been really fun watching [that kind of wellness] take off."

She continued, "I think it's wrong for O.G. witches to be like, 'Ugh, now everyone has crystals.' It's like, Yes! Amazing."

For Anya, crystals have been a healing practice.

"People are starting to open their minds to the idea of minerals having properties that can help you out," she explained, "and it being less 'inject this; this will make you feel great.' Just maybe take a couple of breaths and hold on to this crystal."

And although Anya didn't showcase her crystal collection while at Cannes, keep reading to see every time her fashion been a real gem.

The actress channeled her inner Princess Peach for The Super Mario Bros. Movie premiere in L.A. in April 2023 in a custom pink jumpsuit by Christian Dior.

Anya Taylor-Joy made a major splash on The Menu red carpet in this bold Alexander McQueen look.

The actress revealed to E! News at the 2021 CFDA Awards that her look was inspired by the 101 Dalmations.

The Menu star served high fashion at the Furiosa: A Mad Max Saga premiere May 2 in this pierced arrow dress.

Anya sizzled at the 2022 Vanity Fair Oscars party with this sheer tulle gown and pearl-beaded veil. The bold red lip and dramatic smoky eye were the perfect finishing touches.

The actress lit up the red carpet at the Dior fall/winter 2022 runway in this dazzling design.

On Saturday night, the actress likes to dress it up! Before hosting Saturday Night Live, Anya got ready with Pureology Global Artistic Ambassador Gregory Russell. 

The actress looked divine in a nude floral and crane embroidered gown with black feather train. 

At the Tribeca Film Festival, Anya wowed in a retro plaid ensemble by Chanel.

The actress turned heads in a vintage Bob Mackie gown with dramatic choker at the premiere of Emma. 

The actress mixed florals and studs in this dramatic look during a British Film Institute Event. 

Anya went for an out-of-this world look rocking a puffy-sleeved black jumpsuit with a silver and gold celestial print.

She showed off this see-through prairie-inspired Burberry gown during her first Cannes Film Festival. 

The star looked like royalty in a sheer black lace embroidered gown, topped with a signature D&G crown.

While at the 2017 BAFTA awards, Anya stunned in a tiered baby blue gown with sequin tiger patch by Gucci.

She showed up to a BAFTA party in a baby pink corseted dress with tulle skirt by Dolce and Gabana.

'70s vibes! Anya sported a black Saint Laurent mini-dress with ribbon headband during the Glass premiere in London.

She glimmered in gold in a pale gold D&G cropped suit and black lipstick.

The Queen's Gambit alum opted for summery in a lipstick pink cropped suit with sky-high golden heels. 

The Golden Globe winner walked the carpet at the Serpentine Gallery Summer Party wearing a blue and green mini-dress in a classic Chanel plaid.