Blake Lively stars as a mysterious (and super-stylish!) suburban mom in the big-screen adaptation of "A Simple Favor," which hits theaters on Sept. 14, 2018. In honor of the crime-drama, Wonderwall.com is taking a look back at the actress' best fashion moments over the years, starting with her look during the 2009 Emmy Awards. The "Gossip Girl" alum made quite the impression in a red Versace gown with a plunging neckline and a front slit. But it wasn't her only impressive style moment of the day…
Blake Lively switched up her look for the HBO afterparty following the 2009 Emmy Awards. She changed into a sparkly LBD with a plunging neckline and statement shoulders — and gigantic, show-stopping Lorraine Schwartz emerald stud earrings.
RELATED: The best Emmy jewels of all time
Blake Lively wore one of her most iconic looks ever — a strapless nude Zuhair Murad creation with intricate webs of black beading — during the Los Angeles premiere of "Savages" on June 25, 2012. Let's take a closer look…
RELATED: All the ways Blake Lively and Ryan Reynolds have publicly professed their love
Blake Lively completed her look with diamond fan earrings by Lorraine Schwartz and a gold, diamond and mammoth-ivory fish cuff. Now let's see what she wore to the New York City premiere of "Savages" just a few days later…
Blake Lively looked anything but mellow in a canary yellow Gucci halter dress with a plunging neckline during the New York City premiere of "Savages" on June 27, 2012. Let's take a closer look at her colorful earrings…
Blake Lively completed her bohemian-chic look during the NYC premiere of "Savages" with a fishtail braid and turquoise Lorraine Schwartz drop earrings.
Blake Lively's salsa-dancer-emoji dress is definitely one of our all-time favorites! She donned the unforgettable Monique Lhuillier frock during the premiere of "The Age of Adaline" in New York City on April 19, 2015. Now let's take a look at her show-stopping bling…
Blake Lively reportedly topped off her Old Hollywood-inspired beauty look with more than $5 million in Lorraine Schwartz jewelry including a pair of gigantic knot earrings and a diamond cocktail ring.
Blake Lively topped many best dressed lists with the regal Atelier Versace gown (that reportedly took more than 600 hours to create) she wore to the 2018 Met Gala — a look that deserves another view…
Blake Lively showed off the impressive train of her Atelier Versace gown on the iconic Met Gala staircase. Wow!
Blake Lively topped off her 2018 Met Gala look with a Lorraine Schwartz headpiece comprised of 100 carats of champagne diamonds. She also rocked earrings made up of 30-carat emeralds and diamonds. It wasn't the only time she owned the Met Gala…
Fashion's golden girl! Blake Lively stunned in another Atelier Versace creation — a curve-hugging gold gown with a feathered train — during the 2017 Met Gala. Now let's take a closer look at her bling…
Blake Lively wore 82-carat Burma sapphire earrings by Lorraine Schwartz and Ofira Jewels during the 2017 Met Gala. But that's not all…
Blake Lively also wore three jaw-dropping cocktail rings from Lorraine Schwartz and Ofira Jewels during the 2017 Met Gala: a 10-carat triangle diamond ring, a 28-carat diamond pear-shaped ring and a 50-carat triple sapphire ring.
While we're on the subject of Blake Lively's bling… We weren't especially crazy about the black Atelier Versace gown with gold trim that the actress donned during the 2017 Golden Globe Awards. But it was an entirely different matter where her jewelry was concerned. The "Gossip Girl" alum wore $7 million in Lorraine Schwartz jewels, including matching emerald-and-diamond cuffs and diamond stud earrings.
Similarly, the strapless blush Burberry gown that Blake Lively wore during the 2016 Met Gala wasn't necessarily our favorite. But we had plenty to write home about in terms of her shoulder-skimming Lorraine Schwartz coral-and-diamond earrings!
Blake Lively had a major (literal) menswear moment in Ralph Lauren during an outing in New York City on Oct. 16, 2017. The actress donned a gray plaid suit and matching coat, which she wore over her shoulders for the ultimate cool-girl-in-boys-clothes look. She completed her stylish ensemble with a tie, studded burgundy boots and a Michael Kors alligator handbag.
Is it any wonder she won co-star Ryan Reynolds' heart? Blake Lively was a vision in white in a floral-embellished Chanel creation with a sheer skirt during the premiere of "Green Lantern" at Grauman's Chinese Theater in Hollywood on June 15, 2011. She completed her look with Lorraine Schwartz jewels: two cocktail rings, layered chunky bracelets and a gold flower barrette in her hair.
Blake Lively brought sexy back while heavily pregnant with her first child with husband Ryan Reynolds, daughter James, in a backless curve-hugging KaufmanFranco creation during the Ninth Annual Women of Worth Awards in New York City on Dec. 2, 2014. But it wasn't her only impressive maternity style moment of her first pregnancy…
Jaws. Dropped. Blake Lively flaunted her pregnancy curves in a long-sleeved pale yellow Gucci gown with a plunging neckline during the Angel Ball in New York City on Oct. 20, 2014.
Blake Lively taught a masterclass in one of spring 2018's hottest trends — the double-breasted coat-minidress — during Lionsgate's CinemaCon presentation in Las Vegas on April 26. She donned a navy blue version by Sonia Rykiel with a white button-down and a bow tie. Let's take a closer look…
Blake Lively completed her CinemaCon look with a feathered Brackish bow tie. So fun and unique!
Orange you glad Blake Lively wore this short-sleeved leather Gucci number to the 2011 Teen Choice Awards? We are! The actress — then at the height of her "Gossip Girl" fame — completed her look with leopard-print heels. So cute! Now let's take a closer look at her earrings…
Blake Lively added another fun pop of color to her 2011 Teen Choice Awards look with triangular Lorraine Schwartz drop earrings.
Blake Lively sported a number of memorable maternity looks while pregnant with her second child with husband Ryan Reynolds, daughter Inez, in 2016. She looked pretty in pink in a curve-hugging rose gold Versace gown during the 69th Cannes Film Festival premiere of "Cafe Society" on May 11. Now check out what she wore a few days later…
Blake Lively flaunted her baby bump in another unforgettable Atelier Versace gown — an asymmetrical blue number with a train — during the 69th Cannes Film Festival premiere of "The BFG" on May 14, 2016. And the day before THAT…
The 2016 Cannes Film Festival was stuffed with memorable Blake Lively fashion moments. On May 13, she channeled a Disney princess in a stunning Vivienne Westwood gown with a tiered skirt during the premiere of "Slack Bay." But it wasn't her only flawless look of the day…
Simply the chicest! Blake Lively rocked a fashion-forward Giambattista Valli minidress featuring a half-cape — which she wore with black-and-white striped shoes with yellow heels — at a photocall for "The Shallows" during the 69th Cannes Film Festival on May 13, 2016.
Being heavily pregnant with her second child didn't stop Blake Lively from showing some skin in a black-and-white bondage-inspired Emanuel Ungaro creation with floral appliqués during an outing in New York City on July 15, 2016.
"Picnic, anyone? I'll bring the tablecloth…" That's how Blake Lively captioned an Instagram photo of herself rocking this divisive plaid Roland Mouret suit in New York City on Aug. 18, 2018. It wasn't the only unforgettable ensemble she wore that day…
The same day she wore her plaid picnic suit, Blake Lively stepped out in a neon green Versace ensemble that we'll surely never forget.
Another year, another memorable Met Gala look! In 2014, Blake Lively channeled Old Hollywood in a pink Gucci Première gown with a plunging neckline and a cape-style train.
On her way to an appearance on "The Tonight Show Starring Jimmy Fallon" in New York City on April 21, 2015, Blake Lively rocked a gorgeous asymmetrical Zuhair Murad dress. Wait till you see what she wore the very next day…
Blake Lively looked flawless in a floral-embellished white Ralph & Russo dress at a party for her Allure magazine cover in New York City on April 22, 2015.
A copper-maned Blake Lively let loose her inner Greek goddess in an asymmetrical draped Chanel gown during the 2011 Met Gala.
The fall of 2014 was the season of the colorful coat for Blake Lively, who rocked an oversized Southwestern-inspired toggle-clasp creation by Lindsey Thornburg with knee-high boots during an outing in New York on Oct. 17.
A few weeks later, Blake Lively rocked another eye-catching Lindsey Thornburg coat during an outing in New York City. On Nov. 3, 2014, the actress wisely paired her black-and-red jacket with black leggings and black knee-high heeled boots.
Blake Lively slayed the style game during the 67th Cannes Film Festival. At the premiere of "Mr. Turner" on May 15, 2014, she sparkled in a waist-emphasizing embellished Chanel sheath, which she accessorized with a white scarf. Now let's see the equally eye-catching look she wore the very next day…
Blake Lively had a major movie-star moment in a black-and-white strapless Gucci gown during the 67th Cannes Film Festival premiere of "Captives" on May 16, 2014. Her bling was equally impressive…
Someone clearly told Blake Lively that diamonds are a girl's best friend! She dripped in Lorraine Schwartz gems — oversized stud earrings and a matching necklace.
Blake Lively wowed in yet another Gucci gown — a burgundy halter dress with a thigh-high slit — during the 67th Cannes Film Festival premiere of "Grace of Monaco" on May 14, 2014. Once again, she completed her look with eye-catching jewels…
Blake Lively rocked intricate Lorraine Schwartz drop earrings with giant jewels during the Cannes premiere of "Grace of Monaco."
A gown fit for a princess! Blake Lively donned a one-shoulder Marchesa creation with an embellished neckline and a sheer skirt during BAFTA's Brits to Watch event as part of Prince William and Duchess Kate's tour of Los Angeles at the Belasco theater on July 9, 2011.
Back in 2011, Blake Lively looked red-hot in an embellished Marchesa minidress during the CinemaCon Awards Gala in Las Vegas on March 31.
Blake Lively donned another unique Marchesa creation — a floral-embroidered low-cut number with tassels on the sleeves and at the hemline — during the Time 100 Gala in New York City on April 25, 2017. It wasn't the first time she stunned during the annual event…
Blake Lively channeled "The Little Mermaid" with her copper-hued mane and draped teal Zuhair Murad gown during the Time 100 Gala in New York City on April 26, 2011. And we were into it!
Blake Lively was a vision in white in a form-fitting knee-length Ralph & Russo creation with unique flower details at the waist at a special screening of "All I See is You" in West Hollywood on Oct. 10, 2017.
Blake Lively donned yet another memorable Marchesa look — an adorable embellished minidress with orange fringe — at the brand's presentation during Fashion Week in February 2011.