© Getty Images

Elegant - The Irish star shone brightly in this Stella McCartney gown at the Tony Awards in 2016 in New York City.

© Getty Images

Stunning - Draped in feathers, here she is in a long dress with a studded butterfly detail at the Met Gala in New York City in 2016.

© Getty Images

Sparkle - Better observed from behind, she wore this gown from the Calvin Klein Collection, along with Chopard earrings, at the 2016 Oscars.

© Getty Images

Floral party - Here she wore a floral strapless dress at the EE British Academy Film Awards in London in 2016.

© Getty Images

Stylish - This short tailored suit brought something a little different to the Oscar nomination ceremony in 2016.

© Getty Images

Shiny and pink - The Irish beauty wore this outfit from the Michael Kors Collection to the 2016 SAG Awards.

© Getty Images

Chic - Here she is in 2016 with an outfit from the Hilfiger Collection.

© Getty Images

Classic - She rocked this fresh sky blue Antonio Berardi dress with gold detailing on the shoulders in 2016.

© Getty Images

Goddess - She stunned in this Yves Saint Laurent outfit at the 2016 Golden Globes.

© Getty Images

Cute - She amazed in this gorgeous long Rodarte dress with embroidered details at the Gotham Awards in 2017.

© Getty Images

Casual - Less is more. This floral shirt and velvet pants combo she wore in 2017 show that she looks effortlessly cool even when she's keeping it casual.

© Getty Images

Keeping it simple - In 2017, she showed up to an event in this pink dress decorated with black bows.

© Getty Images

Boss - The Irish star rocked this black cutout dress like a boss in 2017.

© Getty Images

Understated - Here we see her in 2017 at the premiere of 'On Chesil Beach' at the BFI London Film Festival in an understated short dress.

© Getty Images

Vintage appeal - Saoirse Ronan wore this Narcizo Rodriguez dress at the 17th Annual Movies for Grownups Awards in 2018.

© Getty Images

Daring - During this appearance on 'The Tonight Show Starring Jimmy Fallon' in 2018, she chose a very transparent piece.

© Getty Images

Sophistication - Here she turned out in a fine white top with flowy trousers in 2018.

© Getty Images

Retro - She turned heads in a retro Calvin Klein Collection dress at the Directors Guild Of America Awards in 2018.

© Getty Images

Leading lady - Here Ronan wore a long sleeve, silk Louis Vuitton dress with silver seams and side slits, this at the 2018 Screen Actors Guild Awards.

© Getty Images

Chilled - At this event in 2018, she looked a bit more chilled, but ever stylish.

© Getty Images

Marvelous - She wowed in this long Michael Kors dress at the Critics' Choice Awards in 2018.

© Getty Images

Beautiful - She wore a glamorous, sparkly number at the 2018 National Board of Review Annual Awards Gala in New York City.

© Getty Images

Dolled up - At the 2018 Golden Globes, she picked up the award for Best Actress in a Comedy or Musical in this chic Versace gown.

© Getty Images

All white - In 2018, she rocked neutral colors and this white outfit with frills around the ankles.

© Getty Images

Relaxed - Here she was in 2018 looking cool in a tailored suit and graphic tee.

© Getty Images

Bold -

That shade of lipstick, hot pink heels, and a creme blazer? She certainly made a statement in 2018 with this look.

© Getty Images

Odd fit -

At the Palm Springs festival in 2018, she wore a red and pink satin Gucci dress with a side split.

© Getty Images

Pretty in pink - On the red carpert at the 90th Annual Academy Awards in Hollywood in 2018, she wore this already iconic Calvin Klein pink dress.

© Getty Images

Feathered is the new chic - With her hair tied up, Ronan attended the EE British Academy Film Awards gala dinner in 2018 wearing this feathered Chanel dress.

© Getty Images

Tuxedo - Looking very grown-up and trendy in this tailored creme suit by Michael Kors, she showed up to the 2018 Tribeca Film Festival.

© Getty Images

And black again - She attended a special screening of 'On Chesil Beach' in London in 2018, rocking this total black look.

© Getty Images

Royal - At the European premiere of 'Mary Queen of Scots' in London in 2019, Ronan wore this beautiful white dress.

© Getty Images

Silver strikes again -

A lot of leg at the 77th Annual Golden Globe Awards on January 5, 2020.

© Getty Images

Floral fit -

Here she attends the 25th Annual Critics' Choice Awards on January 12, 2020, in Santa Monica, California.

© Getty Images

Black is back -

That red lip made this dress pop at the BAFTAs in February 2020.

© Getty Images

Modern glamor -

Back in her natural environment, here's Saoirse Ronan at the 92nd Annual Academy Awards on February 9, 2020.

© Getty Images

Chic and sharp -

She looked cool and sophisticated in this pinstripe suit while attending the play 'The Tragedy of Macbeth' in London on October 14, 2021. 

© Getty Images

A ray of sunshine -

Ronan wore this stunning mustard-colored gown by Erdem to the 2022 BAFTA Scotland ceremony. 

See also: From Prada to Poppins: The rise of Emily Blunt

© Getty Images