Katie Holmes exudes elegance in off-the-shoulder embellished gown

This might be Katie Holmes' most elegant look yet!

The 38-year-old actress looked absolutely stunning when she showed up to the Holt Renfrew 180th Anniversary -- hosted by Mr. W. Galen Weston and The Hon. Hilary M. Weston in partnership with Vogue -- on Thursday in Toronto, Canada.

Holmes swept up her hair to draw even more attention to her gorgeous off-the-shoulder Zac Posen gown that included floral embroidery on the top and a mermaid cut at the bottom. The dress doesn't come cheap, however, with Neiman Marcus pricing it at nearly $7,000.

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Photo: Getty Images

"Thank you @zacposen for the beautiful dress!" the Dawson's Creek star posted to Instagram following the event. "What a lovely evening celebrating #holtrenfrew 180th anniversary!"

Leave it to Holmes to always look stylish! Even when she was spotted taking a casual stroll with rumored boyfriend Jamie Foxx in Malibu, California, last month, she had the perfect outfit on for the occasion.

An eyewitness told ET of the pair, "They seemed to really appreciate every moment together because Jamie did not leave her side. They held hands as they walked on the beach and seemed really relaxed and playful."

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Katie Holmes' style transformation
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Katie Holmes' style transformation
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Katie Holmes (Photo by Jim Smeal/WireImage)
Katie Holmes (Photo by Steve Granitz/WireImage)
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Katie Holmes (Photo by Jeff Vespa Archive/WireImage)
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Katie Holmes (Photo by Dimitrios Kambouris/WireImage)
Katie Holmes at the VH1 Save The Music: A Concert To Benefit The VH1 Save The Music Foundation - Red Carpet at Beacon Theatre in New York City, New York. (Photo by Jeff Kravitz/FilmMagic)
TOKYO - MAY 31: Actress Katie Holmes attends the Japan Premiere of 'Batman Begins' on May 31, 2005 in Tokyo, Japan. The film will open on June 18 in the U.S. and Japan. (Photo by Junko Kimura/Getty Images)
LONDON - JUNE 12: *** UK TABLOID NEWSPAPERS OUT*** Katie Holmes arrives at the European premiere of 'Batman Begins' at the Odeon Leicester Square on June 12, 2005 in London, England. (Photo by Gareth Davies/Getty Images)
Katie Holmes in Paris, France. (Photo by Tony Barson/WireImage)
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Katie Holmes and Tom Cruise during 'War of the Worlds' New York City Premiere - Outside Arrivals at Ziegfeld Theatre in New York City, New York, United States. (Photo by Ron Galella/WireImage)
Katie Holmes and Tom Cruise during 'War of the Worlds' Los Angeles Fan Screening - Arrivals in Los Angeles, California, United States. (Photo by SGranitz/WireImage)
Tom Cruise and Katie Holmes during 'Mission: Impossible III' Fan Screening - Red Carpet at Grauman's Chinese Theatre in Los Angeles, California, United States. (Photo by L. Cohen/WireImage)
Tom Cruise and Katie Holmes during 'Mission: Impossible III' Los Angeles Fan Screening - Arrivals at Chinese Theater in Hollywood, California, United States. (Photo by Jon Kopaloff/FilmMagic)
PARIS - OCTOBER 6: Victoria Beckham and actress Katie Holmes attend the Chanel Fashion Show, as part of Paris Fashion Week Spring/Summer 2007 on October 6, 2006 in Paris, France. (Photo by Michel Dufour/WireImage)
Katie Holmes and Tom Cruise at the Hammerstein Ballroom in New York City, New York (Photo by Kevin Mazur/WireImage)
Katie Holmes and Roberta Armani at Armani's Spring/Summer 2007-2008 Haute Couture collection during Paris Fashion Week. (Photo by Stephane Cardinale/Corbis via Getty Images)
Katie Holmes during 2007 Vanity Fair Oscar Party Hosted by Graydon Carter - Arrivals at Mortons in West Hollywood, California, United States. (Photo by George Pimentel/WireImage)
LOS ANGELES - MARCH 22: Actress Katie Holmes arrives at MENTOR LA's Promise Gala honoring Tom Cruise at Twentieth Century Fox Studios on March 22, 2007 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
NEW YORK - JULY 16: Actress Katie Holmes attends the 'Hairspray' premiere presented by New Line Cinema at the Ziegfeld Theatre on July 16, 2007 in New York City. (Photo by Evan Agostini/Getty Images)
LOS ANGELES, CA - NOVEMBER 01: Actress Katie Holmes arrives at the AFI Fest opening night gala presentation of 'Lions For Lambs' held at the Cinerama Dome on November 1st, 2007 in Los Angeles, California. (Photo by Jean-Paul Aussenard/WireImage)
Actress Katie Holmes arrives at the Los Angeles Premiere 'Mad Money' at the Mann Village Theater on January 9, 2008 in Westwood, California. (Photo by Jon Kopaloff/FilmMagic)
NEW YORK - JANUARY 14: Actress Katie Holmes attends the 'Late Show With David Letterman' taping at the Ed Sullivan Theater January 14, 2008 in New York City. (Photo by Ray Tamarra/Getty Images)
NEW YORK - FEBRUARY 6: Katie Holmes, wearing Alexander McQueen, arrives at 'A Night to Benefit Raising Malawi and UNICEF' hosted by Madonna and Gucci at theUnited Nations on February 6, 2007 in New York City. (Photo by Rabbani & Solimene/WireImage)
LOS ANGELES, CA - FEBRUARY 9: Katie Holmes attends LACMA Opening Celebration of the Broad Contemporary Art Museum BCAM - Arrivals at LACMA on February 9, 2008 in Los Angeles, CA. (Photo by BRIAN LINDENSMITH/Patrick McMullan via Getty Images)
NEW YORK - MAY 5: Katie Holmes attends the Metropolitan Museum of Art Costume Institute Gala 'Superheroes: Fashion And Fantasy' at the Metropolitan Museum of Art on May 5, 2008 in New York City. . (Photo by Rabbani & Solimene/WireImage)
LOS ANGELES - AUGUST 11: Actress Katie Holmes arrives at the premiere of Dreamworks Pictures' 'Tropic Thunder' at the Mann Village Theater on August 11, 2008 in Los Angeles, California. (Photo by Michael Buckner/Getty Images)
NEW YORK - SEPTEMBER 07: Actress Katie Holmes attends the Cinema Society with People StyleWatch & J. Crew screening of 'The Romantics' at AMC Loews 19th Street East 6 theater on September 7, 2010 in New York City. (Photo by Jim Spellman/WireImage)
Actress Katie Holmes arrives at Variety's 2nd Annual Power Of Women Luncheon at the Beverly Hills Hotel on September 30, 2010 in Beverly Hills, California.
BEVERLY HILLS, CA - MARCH 28: Actors Tom Cruise and Katie Holmes attend 'The Kennedys' world premiere held at AMPAS Samuel Goldwyn Theater on March 28, 2011 in Beverly Hills, California. (Photo by Steve Granitz/WireImage)
CENTURY CITY, CA - MAY 19: Actress Katie Holmes attends the 'Beauty Culture' exhibition opening reception at Annenberg Space For Photography on May 19, 2011 in Century City, California. (Photo by Jason LaVeris/FilmMagic)
Katie Holmes attends the 56th annual Drama Desk awards at Hammerstein Ballroom on May 23, 2011 in New York City. (Photo by James Devaney/WireImage)
BEVERLY HILLS, CA - JUNE 16: Actress Katie Holmes during the 2011 Women In Film Crystal + Lucy Awards with presenting sponsor PANDORA jewelry at the Beverly Hilton Hotel on June 16, 2011 in Beverly Hills, California. (Photo by Christopher Polk/Getty Images for WIF)
LOS ANGELES, CA - JUNE 26: Actress Katie Holmes arrives at the LAFF closing night 'Dont Be Afraid Of The Dark at Regal Cinemas, L.A. Live on June 26, 2011 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
PARIS, FRANCE - JULY 05: Katie Holmes attends the Giorgio Armani Prive Haute Couture Fall/Winter 2011/2012 show as part of Paris Fashion Week at Palais de Chaillot on July 5, 2011 in Paris, France. (Photo by Tony Barson/WireImage)
LOS ANGELES, CA - SEPTEMBER 18: Katie Holmes attends the 63rd Annual Primetime Emmy Awards held at Nokia Theatre L.A. LIVE on September 18, 2011 in Los Angeles, California. (Photo by Donato Sardella/WireImage)
WESTWOOD, CA - NOVEMBER 06: Actress Katie Holmes attends the premiere of Columbia Pictures' 'Jack And Jill' at the Regency Village Theatre on November 6, 2011 in Westwood, California. (Photo by David Livingston/Getty Images)
WEST HOLLYWOOD, CA - FEBRUARY 26: Actors Katie Holmes and Tom Cruise attend the 2012 Vanity Fair Oscar Party Hosted By Graydon Carter at Sunset Tower on February 26, 2012 in West Hollywood, California. (Photo by Christopher Polk/VF12/Getty Images for Vanity Fair)
NEW YORK, NY - SEPTEMBER 12: (Exclusive Coverage) Katie Holmes backstage at the Holmes & Yang spring 2013 presentation during Mercedes-Benz Fashion Week at The Box at Lincoln Center on September 12, 2012 in New York City. (Photo by Kevin Mazur/WireImage)
NEW YORK, NY - DECEMBER 12: Katie Holmes attends '12-12-12' a concert benefiting The Robin Hood Relief Fund to aid the victims of Hurricane Sandy presented by Clear Channel Media & Entertainment, The Madison Square Garden Company and The Weinstein Company at Madison Square Garden on December 12, 2012 in New York City. (Photo by Dimitrios Kambouris/Getty Images)
NEW YORK, NY - MAY 06: Katie Holmes attends the Costume Institute Gala for the 'PUNK: Chaos to Couture' exhibition at the Metropolitan Museum of Art on May 6, 2013 in New York City. (Photo by Karwai Tang/FilmMagic)
Katie Holmes attends the Gravity film premiere at Lincoln Square in New York City. ?? LAN (Photo by Lars Niki/Corbis via Getty Images)
NEW YORK, NY - APRIL 21: Actress Katie Holmes attends the 'Miss Meadows' Premiere during 2014 Tribeca Film Festival at the SVA Theater on April 21, 2014 in New York City. (Photo by Jamie McCarthy/Getty Images for the 2014 Tribeca Film Festival)
NEW YORK, NY - MAY 05: Katie Holmes attends the 'Charles James: Beyond Fashion' Costume Institute Gala at the Metropolitan Museum of Art on May 5, 2014 in New York City. (Photo by Larry Busacca/Getty Images)
NEW YORK, NY - JULY 24: Actress Katie Holmes attends the ASP - The World Surf League cocktail party at The Jimmy at the James Hotel on July 24, 2014 in New York City. (Photo by Ilya S. Savenok/Getty Images)
NEW YORK, NY - AUGUST 11: Actress Katie Holmes attends 'The Giver' premiere at Ziegfeld Theater on August 11, 2014 in New York City. (Photo by Jim Spellman/WireImage)
NEW YORK, NY - OCTOBER 21: Actress Katie Holmes attends the 2014 Skin Cancer Foundation Gala at Mandarin Oriental Hotel on October 21, 2014 in New York City. (Photo by Michael Stewart/WireImage)
NEW YORK, NY - NOVEMBER 12: Actress Katie Holmes attends The Cinema Society and Olay Host screening of Entertainment One's 'Miss Meadows' at Neuehouse on November 12, 2014 in New York City. (Photo by Jamie McCarthy/WireImage)
BEVERLY HILLS, CA - JANUARY 11: Katie Holmes attends The Weinstein Company & Netflix's 2015 Golden Globes After Party presented by FIJI Water, Lexus, Laura Mercier and Marie Claire at The Beverly Hilton Hotel on January 11, 2015 in Beverly Hills, California. (Photo by Rich Polk/Getty Images for FIJI Water)
NEW YORK, NY - FEBRUARY 12: Actress Katie Holmes poses backstage at the Desigual fashion show during Mercedes-Benz Fashion Week Fall 2015 at The Theatre at Lincoln Center on February 12, 2015 in New York City. (Photo by Robin Marchant/Getty Images for Mercedes-Benz Fashion Week)
BERLIN, GERMANY - JANUARY 20: Katie Holmes during the Marc Cain Dinner at Sra Bua Bar on January 20, 2015 in Berlin, Germany. (Photo by Gisela Schober/Getty Images)
NEW YORK, NY - MARCH 30: Actress Katie Holmes attends 'Woman In Gold' New York Premiere at The Museum of Modern Art on March 30, 2015 in New York City. (Photo by Astrid Stawiarz/Getty Images)
LOS ANGELES, CA - FEBRUARY 21: Actress Katie Holmes attends the 3rd annual Gold Meets Golden at Equinox Sports Club West LA on February 21, 2015 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
NEW YORK, NY - MAY 04: Katie Holmes attends the 'China: Through The Looking Glass' Costume Institute Benefit Gala at Metropolitan Museum of Art on May 4, 2015 in New York City. (Photo by Kevin Mazur/WireImage)
NEW YORK, NY - JUNE 01: Katie Holmes attends the 2015 CFDA Fashion Awards at Alice Tully Hall at Lincoln Center on June 1, 2015 in New York City. (Photo by Jamie McCarthy/WireImage)
NEW YORK, NY - OCTOBER 22: Katie Holmes attends the 2015 Fashion Group International Night Of Stars Gala at Cipriani Wall Street on October 22, 2015 in New York City. (Photo by Dimitrios Kambouris/Getty Images)
CULVER CITY, CA - NOVEMBER 19: Actress Katie Holmes attends the WWD And Variety inaugural stylemakers' event at Smashbox Studios on November 19, 2015 in Culver City, California. (Photo by Jason Merritt/Getty Images)
MIAMI BEACH, FL - DECEMBER 04: Katie Holmes attends 'Art of the Party with Katie Holmes' hosted by Ocean Drive Magazine on December 4, 2015 in Miami Beach, Florida. (Photo by Sergi Alexander/Getty Images)
NEW YORK, NY - APRIL 15: Katie Holmes attends the 'All We Had' Premiere at John Zuccotti Theater at BMCC Tribeca Performing Arts Center on April 15, 2016 in New York City. (Photo by Donna Ward/FilmMagic)
HOLLYWOOD, CA - APRIL 25: Katie Holmes arrives at the For Your Consideration Screening And Panel For Showtime's 'Ray Donovan' at Paramount Theatre on April 25, 2016 in Hollywood, California. (Photo by Steve Granitz/WireImage)
BEVERLY HILLS, CA - MARCH 15: Katie Holmes attends the premiere of Reelz's 'The Kennedys After Camelot' at The Paley Center for Media on March 15, 2017 in Beverly Hills, California. (Photo by Todd Williamson/Getty Images)
NEW YORK, NY - MAY 01: Katie Holmes attends the 'Rei Kawakubo/Comme des Garcons: Art Of The In-Between' Costume Institute Gala at Metropolitan Museum of Art on May 1, 2017 in New York City. (Photo by John Shearer/Getty Images)
NEW YORK, NY - MAY 22: Katie Holmes attends the American Ballet Theatre Spring 2017 Gala at The Metropolitan Opera House on May 22, 2017 in New York City. (Photo by Andrew Toth/Getty Images)
NEW YORK, NY - JUNE 14: Katie Holmes poses backstage at the 2017 Fragrance Foundation Awards Presented By Hearst Magazines at Alice Tully Hall on June 14, 2017 in New York City. (Photo by Dia Dipasupil/Getty Images for Fragrance Foundation)
NEW YORK, NY - AUGUST 16: Actress Katie Holmes attends the 'The Tick' Blue Carpet Premiere at Village East Cinema on August 16, 2017 in New York City. (Photo by Mark Sagliocco/FilmMagic)
NEW YORK, NY - SEPTEMBER 11: Actress Katie Holmes is seen leaving Lanyu fashion show during New York Fashion Week: The Shows at Gallery 2, Skylight Clarkson Sq on September 11, 2017 in New York City. (Photo by Gilbert Carrasquillo/GC Images)
VERONA, ITALY - OCTOBER 06: Katie Holmes attends Intimissimi On ice 2017 on October 6, 2017 in Verona, Italy. (Photo by Venturelli/Getty Images)
TORONTO, ON - OCTOBER 12: Actress Katie Holmes attends Holt Renfrew 180TH Anniversary hosted by Mr. W. Galen Weston and The Hon. Hilary M. Weston in partnership with Vogue Magazine held at Holt Renfrew Flagship Store on October 12, 2017 in Toronto, Canada. (Photo by George Pimentel/WireImage)
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