Lupita Nyong'o's Galactic Green Gown, Olivia Munn's Mustard Ensemble & More Best Dressed Stars of the Week

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The Star Wars: The Last Jedi leading ladies took us out of this world and into a glorious fashion galaxy far, far away! Sofia Carson and Maggie Q shined bright in jewel-toned frocks and the Assassination of Gianni Versace men looked dashing!

Among the trends this week were stacked sparkling rings and accessories, with Lupita Nyong'o and Jenna Ortega dazzling in stunning diamonds on the red carpets. As the temperature begins to drop, the fashion-forward stars also opt for elegant and detailed coats for their everyday looks.

ET has all the details on the best dressed celebrities that slayed the fashion game for the week of Dec. 10 -- and where you can get their looks!

Lupita Nyong'o 

Lupita Nyong'o at the Star Wars: The Last Jedi premiere
Frederick M. Brown/Getty Images

The 34-year-old actress dazzled at the Star Wars: The Last Jedi premiere at The Shrine Auditorium in Los Angeles, California, on Dec. 9.

Nyong'o wore a mermaid green sequin dress by Halpern, which featured a thigh-high slit and gorgeous beaded detailing and gold highlights. The stunning star accessorized her look with $795 gold Jimmy Choo "Minny" heels and a $2,870 Tyler Ellis clutch.

The Oscar winner also frosted herself with Tiffany & Co. jewelry, which included $115,000 platinum diamond earrings, a $9,000 Tiffany HardWear ball diamond ring in 18-karat white gold, a smaller Tiffany HardWear ball diamond ring worth $4,000 and a $25,000 18-karat gold ring with diamonds. Spectacular!

Daisy Ridley

Daisy Ridley at the Star Wars: The Last Jedi premiere
Ethan Miller/Getty Images

Another Star Wars leading lady that wowed at the premiere was Daisy Ridley.

The 25-year-old actress made us see stars with her midnight blue Monse gown from the designer's Spring 2018 collection worth $8,600. The shimmery strapless frock was embellished with sequins and fringes on the bottom.

Ridley completed the look with gold Louboutin sandals and stunning star-themed jewelry, including a Selim Mouzannar earring in pink gold with white diamonds and a blue sapphire earring that aren't currently available online, but for a similar look, the brand has $2,645 White Diamond Star Studs.

She also donned a Penny Preville 18-karat diamond shooting star Bypass Ring worth $2,995 and a matching 18-karat diamond shooting starburst Bypass Ring, retailing for $3,490.

Penny Preville Rings
Penny Preville

For added bling she wore Tiffany & Co. solitaire diamond earrings in platinum worth $51,500 and a Tiffany bracelet in platinum with diamonds from the Victoria line that costs $15,000. 

Daisy Ridley Tiffany
Tiffany & Co.

ET caught up with Ridley on the red carpet, where she thanked her "wonderful stylist" for her galactic look.

"My lovely stylist put me in star, what can I say?" she explained, adding that she was a bit anxious before the premiere.

"I was really nervous about an hour ago and then I got here and it was weirdly calm out there. So I was like, 'Oh!' It's all so sweet and quiet and then I come over here and it's like, 'Oh my god! Everybody is shouting and being so loud!' So it took me a second."

Jenna Ortega

Jenna Ortega Star Wars Premiere Los Angeles
Frederick M. Brown/Getty Images/Axelle/Bauer-Griffin/FilmMagic

Another stellar star who caught our eye on the Star Wars L.A. red carpet was the Stuck in the Middle actress.

Ortega dazzled in a black-and-white accordion-style Gosia Baczynska gown that included a mesh back, rainbow sequins and pleats.

The 15-year-old actress accessorized with a black Kilian clutch, a $14,850 white gold Stefere star diamond ear cuff, a gold with green garnet ring worth $8,500 from the same designer and a House of Emmanuele gold-and-black ring. We'll be keeping an eye on this rising style star!

John Boyega

John Boyega in London
Neil Mockford/GC Images

The 25-year-old Star Wars stud stepped out looking sharp while out in London, England, promoting his new flick on Dec. 12.

Boyega donned a dark gray Dolce & Gabbana with stitching detailing, gold buttons and patch embellishments. Underneath he wore all black and rocked black leather shoes.

Olivia Munn

Olivia Munn SAG nominations
Matt Winkelmeyer/Getty Images

The X‑Men: Apocalypse star looked marvelous in mustard at the 24th Annual SAG Awards Nominations Announcement in Hollywood on Dec. 13.

Munn looked chic in a $495 rust-colored Rosetta Getty crop top and matching trousers worth $890 from the designer's Resort 2018 collection. The minimalistic look, which she paired with strappy copper Louboutin sandals, was perfect for the occasion.

She also wore a GLAAD pin, $2,990 Jamie Wolf Epaulment Twisted hoop earrings, a $990 14-karat yellow gold diamond-and-onyx EFFY Jewelry ring and a Sara Weinstock ring.

Jessica Biel

Jessica Biel in floral dress
Bruce/BACKGRID

The brunette beauty stepped out in a flirty floral ensemble while out in Beverly Hills, California, on Dec. 11.

Biel, 35, wore a long-sleeved Savanna Lattice Back Fit & Flare dress by AFRM featuring a ruffled hemline and crisscross-detailed back. The dress, which retails for $118, is also available in black with white polka dots.

The Sinner star completed her look with $300 HAZE sunglasses and a burgundy leather jacket.

Maggie Q

Maggie Q at Unforgettable Gala
Christopher Polk/Getty Images

Rocking a gorgeous hunter green gown was the Designated Survivor star at the 16th Annual Unforgettable Gala in Beverly Hills, California, on Dec. 9.

Maggie turned heads in a body-hugging strapless Zac Posen gown from the designer's Spring 2018 collection. The piece featured a plunging neckline with a structured mermaid-inspired skirt.

The actress kept the rest of her look simple with Josephine Bergsoe jewelry -- including pearl earrings -- her brown locks in tousled waves and natural bronze makeup.

Brittany Snow

Brittany Snow Pitch Perfect 3 Premiere
Getty Images

The 31-year-old red-headed actress exuded elegance at the Los Angeles Pitch Perfect 3 premiere on Dec. 12.

Snow stepped out in a low-cut Monique Lhuillier Fall 2017 gown featuring a see-through skirt, low-V bodice and multi-colored floral embroidery.

As for the rest of the feminine look, Snow wore Jimmy Choo "Ren" black suede sandals, which retail for $895, Ileana Makri’s single-stone rings, retailing for around $550, diamond earrings by MARLI, a Borgioni diamond earring and a yellow diamond ring by Harry Kotlar.

ET chatted with the stunning actress on the red carpet, where she told us about her favorite part of her outfit.

"It feels like me. When I tried it on I was, like, 'Oh, this was meant to fit my body,'" Snow shared.

Brittany Snow Accessories Pitch Perfect 3 Premiere
Amanda Edwards/WireImage

Sofia Carson

Sofia Carson Pitch Perfect 3 Premiere
Alberto E. Rodriguez/Getty Images

Another stunner at the Pitch Perfect 3 Los Angeles premiere was Sofia Carson, who looked like a real-life gem!

The 24-year-old Descendants star was a vision in a metallic violet Francesco Scognamiglio strapless dress from his Spring 2018 collection. The midi-trumpet piece is a thing of beauty with crackled shiny fabric, ruffled sweetheart bustier and hemline.

The actress paired the look with $750 silver platform Giuseppe Zanotti pumps with ankle straps and diamond baguette drop earrings. Her dark hair was slicked straight and she rocked smoky brown eyeshadow and a taupe lip.

Edgar Ramirez, Darren Criss and Ricky Martin

Edgar Ramirez, Darren Criss and Ricky Martin
Mike Coppola/Getty Images

The Assassination of Gianni Versace: American Crime Story studs looked debonair at the series' New York screening on Dec. 11.

Ramirez stepped out in a burgundy Brioni suit, which he paired with a dark turtleneck and black leather shoes. Criss rocked a gray turtleneck with black trousers and a tan suede jacket. Meanwhile, Martin looked slick in a navy suit with a crisp white button-up, blue-gray tie and black shoes.

Katie Holmes

Katie Holmes in NY
Gotham/GC Images

The 38-year-old actress stepped out in style in New York on Dec. 11.

The brunette beauty was photographed wearing a Ralph Lauren "Maxine" off-the-shoulder leather jacket from the Fall 2017 collection, which retails for $2,990. She paired the top with black tuxedo pants from the same designer, worth $1,450, a camel-colored coat, black pointed-toe heels and a plum-colored purse.

Ralph Lauren
Ralph Lauren

Kaia Gerber's Playful Pastel Two-Piece, Selena Gomez's Coach Ensemble & More Best Dressed Stars of the Week

What did you think of this week's best dressed stars? Did you see anything else you absolutely loved? Tell us your thoughts by tweeting @LizCalvario or @etnow!

For more stylish celebs, watch below.

Additional reporting by Amy Purnell and Katie Krause.

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