Pippa Middleton flashes glitzy engagement ring at 9/11 event

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Future wife ... and businesswoman?

Pippa Middleton may be a successful author and party planner, but don't count her out of a future career in business!

The newly engaged 33-year-old rubbed elbows with stockbrokers on Monday at the 12th BGC Annual Charity Day in London. The event commemorated the 658 employees lost in the World Trade Center attacks on 9/11. Middleton was all smiles while joining brokers as they made deals around the world.

BGC Annual Global Charity DayGetty

Duchess Kate's little sister showed off her enviable figure in a fitted grey jumpsuit that she paired with shoes of the same shade and a powder blue clutch. She opted for a fuss-free hairstyle with some casual waves.

See Pippa Middleton through the years:

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Pippa Middleton
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Pippa Middleton
LONDON, ENGLAND - JULY 18: Pippa Middleton and Princess Eugenie attend The Frost family final Summer Party to raise money for the Miles Frost Fund in partnership with the British Heart Foundation on July 18, 2016 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images for British Heart Foundation)
LONDON, ENGLAND - JULY 08: James Middleton and Pippa Middleton attend day eleven of the Wimbledon Tennis Championships at Wimbledon on July 08, 2016 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - JULY 08: James Middleton and Pippa Middleton attend day eleven of the Wimbledon Tennis Championships at Wimbledon on July 08, 2016 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - JULY 06: Pippa Middleton and James Matthews attend day nine of the Wimbledon Tennis Championships at Wimbledon on July 06, 2016 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - JULY 04: Pippa Middleton seen arriving at Day 8 of Wimbledon on July 4, 2016 in London, England. (Photo by Neil Mockford/GC Images)
LONDON, ENGLAND - APRIL 28: Pippa Middleton attends Disability Snowsport UK ParaSnowBall 2016 sponsored by Crystal Ski Holidays and Salomon, at The Hurlingham Club on April 28, 2016 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images for Disability Snow Sports UK)
LILLEHAMMER, NORWAY - MARCH 19: Pippa Middleton attends Birkenbeinerrennet ski race on March 19, 2016 in Lillehammer, Norway. (Photo by Ragnar Singsaas/WireImage)
LONDON, ENGLAND - FEBRUARY 11: Pippa Middleton attends the British Heart Foundation: Roll Out The Red Ball at The Savoy Hotel on February 11, 2016 in London, England. (Photo by Danny Martindale/WireImage)
KING'S LYNN, UNITED KINGDOM - JANUARY 10: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Pippa Middleton attends the Sunday service at St Mary Magdalene Church, Sandringham on January 10, 2016 in King's Lynn, England. (Photo by Max Mumby/Indigo/Getty Images)
FILE - In this Saturday, Feb. 26, 2011 file photo, Pippa Middleton, sister of Kate Middleton, as she arrives at the wedding of the Duke and Duchess of Northumberland's eldest daughter Lady Katie Percy to city financier Patrick Valentine at St Michael's Church in Alnwick, England. Pippa Middleton, the sister of Kate will be maid of honour at the wedding of Britain's Prince William and Kate Middleton on April 29, 2011. (AP Photo/Scott Heppell, File)
LONDON, ENGLAND - APRIL 28: Catherine Middleton (R) her mother Carole and sister Pippa arrives at The Goring Hotel after visiting Westminster Abbey on April 28, 2011 in London, England. With less than 24 hours to go final preparations for the wedding of Prince William and Catherine Middleton are in place. (Photo by Christopher Furlong/Getty Images)
LONDON, ENGLAND - APRIL 29: Sister of the bride and Maid of Honour Pippa Middleton arrives to attend the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Pascal Le Segretain/Getty Images)
LONDON, ENGLAND - APRIL 29: Maid of Honour Pippa Middleton with brides maids and page boy make the journey by carriage procession to Buckingham Palace following their marriage at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne was led by the Archbishop of Canterbury and was attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Peter Jordan - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 09: Pippa Middleton watches the Men's Singles third round match between Andy Roddick of the United States and Kevin Anderson of South Africa on day four of the AEGON Championships at Queens Club on June 9, 2011 in London, England. (Photo by Clive Brunskill/Getty Images)
Kate, Duchess of Cambridge, right, speaks with her sister Pippa Middleton to watch Roger Federer of Switzerland face Andy Murray of Britain during the men's final match at the All England Lawn Tennis Championships at Wimbledon, England, Sunday, July 8, 2012. (AP Photo/Kirsty Wigglesworth)
NEW YORK, NY - SEPTEMBER 05: Pippa Middleton attends Day Ten of the 2012 US Open at USTA Billie Jean King National Tennis Center on September 5, 2012 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)
Pippa Middleton poses at Shadowdance Premiere at Cineworld Haymarket on Monday August 13, 2012 in London. (Photo by Jon Furniss/Invision/AP)
Pippa Middleton, sister to the Duchess of Cambridge, formerly known as Kate Middleton, poses for the media as she arrives at a bookshop to promote her new book "Celebrate: A Year of British festivities for families and friends", in London Thursday, Oct. 25, 2012. (AP Photo/Kirsty Wigglesworth)
LONDON, UNITED KINGDOM - OCTOBER 25: (EXCLUSIVE COVERAGE) Pippa Middleton launches her new creative entertaining book 'Celebrate: A Year Of Festivities For Family and Friends' at an afternoon children's hallowen party held at Daunt Books, Fulham Road on October 25, 2012 in London, United Kingdom. (Photo by David Levenson/Getty Images)
Pippa Middleton watches Czech Tomas Berdych play against Switzerland's Roger Federer during their 2012 US Open men's singles quarterfinal match at the USTA Billie Jean King National Tennis Center in New York on September 5, 2012. AFP PHOTO/Emmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/GettyImages)
ALNWICK, UNITED KINGDOM - JUNE 22: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Pippa Middleton attends the wedding of Lady Melissa Percy and Thomas Van Straubenzee at St Michael's Church on June 22, 2013 in Alnwick, England. (Photo by Max Mumby/Indigo/Getty Images)
CHELTENHAM, ENGLAND - MARCH 14: Pippa Middleton attends the third day of the Cheltenham Festival, at Cheltenham Racecourse on March 14, 2013 in Cheltenham, England. (Photo by Julian Parker/UK Press via Getty Images)
Pippa Middleton arrives at the wedding of James Meade and Lady Laura Marsham, at Gayton Church in Gayton, Norfolk, Saturday, Sept 14, 2013. (Photo by Joel Ryan/Invision/AP)
LONDON, ENGLAND - JUNE 24: Pippa Middleton and James Middleton watch the Gentlemen's Singles first round match between Andy Murray of Great Britain and Benjamin Becker of Germany on day one of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 24, 2013 in London, England. (Photo by Clive Brunskill/Getty Images)
LONDON, ENGLAND - NOVEMBER 20: Pippa Middleton attends the Sugarplum Ball at One Mayfair on November 20, 2013 in London, England. (Photo by Gareth Cattermole/Getty Images)
Party planner Pippa Middleton promotes the Dutch edition of her book 'Celebrate: A Year of British Festivities for Families and Friends' in a bookstore in Haarlem. Kate Middleton's younger sister Pippa describes her stardom -- and the attention paid to her behind -- after last year's royal wedding as 'startling', in a book to be released in October. AFP PHOTO / ANP / KIPPA ROBIN VAN LONKHUIJSEN netherlands out - (Photo credit should read ROBIN VAN LONKHUIJSEN/AFP/Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 21: In this handout image provided by the Boodles Boxing Ball Committee, Pippa Middleton attends the Boodles Boxing Ball 2013 on September 21, 2013 at the Grosvenor House in London,England. (Photo by Dominic O'Neill/Boodles Boxing Ball Committee via Getty Images)
LONDON, UNITED KINGDOM - JULY 11: Pippa Middleton and James Middleton in the royal box during the Coronation Festival Evening Gala at Buckingham Palace on July 11, 2013 in London, England. (Photo by Dominic Lipinski-WPA Pool/Getty Images)
Pippa Middleton arrives for the GQ Men Of The Year Awards 2014 at a central London venue, London, Tuesday, Sept. 2, 2014. (Photo by Jonathan Short/Invision/AP)
Pippa Middleton seen out in Chelsea, 11 September 2014. 11 September 2014. 11 September 2014. Vantage News/IPx
LONDON, ENGLAND - MARCH 13: Pippa Middleton attends a memorial service for Sir David Frost at Westminster Abbey on March 13, 2014 in London, England. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - JUNE 10: Pippa Middleton attends day two of the Aegon Championships at Queens Club on June 10, 2014 in London, England. (Photo by Matthew Stockman/Getty Images)
LONDON, ENGLAND - FEBRUARY 10: Pippa Middleton attends the British Heart Foundations Roll Out The Red Ball at Park Lane Hotel on February 10, 2015 in London, England. (Photo by Tim P. Whitby/Getty Images)
LONDON, ENGLAND - MARCH 18: Pippa Middleton leaves The Cumberland Hotel after attending a fundraising ball for Disability SnowSport UK on March 18, 2015 in London, England. (Photo by Keith Hewitt/GC Images)
BRIGHTON, ENGLAND - JUNE 21: Pippa Middleton Finishes the London To Brighton Bike Ride For British Heart Foundation on June 21, 2015 in Brighton, England. (Photo by Anthony Harvey/Getty Images)
LONDON, ENGLAND - MARCH 31: Pippa Middleton attends as Spectator Life magazine celebrates its third birthday at the Belgraves Hotel on March 31, 2015 in London, England. (Photo by David M. Benett/Getty Images)
LONDON, ENGLAND - JULY 09: Pippa Middleton attends day ten of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 9, 2015 in London, England. (Photo by Shaun Botterill/Getty Images)
KING'S LYNN, ENGLAND - JULY 05: Pippa Middleton arrives at the Church of St Mary Magdalene on the Sandringham Estate for the Christening of Princess Charlotte of Cambridge on July 5, 2015 in King's Lynn, England. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - JULY 18: Pippa Middleton attends The Frost family final Summer Party to raise money for the Miles Frost Fund in partnership with the British Heart Foundation on July 18, 2016 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images for British Heart Foundation)
LONDON, ENGLAND - SEPTEMBER 12: Pippa Middleton attends the Boodles Boxing Ball at The Grosvenor House Hotel on September 12, 2015 in London, England. (Photo by Eamonn M. McCormack/Getty Images)
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But everyone's eyes seemed to gravitate towards the big rock she flashed on her ring finger. Her longtime beau, hedge fund manager James Matthews, proposed to the brunette beauty in July. Experts believe the glitzy engagement ring may have cost her 40-year-old fiancé nearly $300,000.

And with some serious bling like that, who could blame Pippa for never wiping that grin off her face?

Middleton's latest appearance comes a week after she celebrated her 33rd birthday. She chose to keep her special day private, as she was spotted around London with her mom. The mother-daughter duo stepped out in style in coordinated outfits.

RELATED: Kate Middleton through the years:

183 PHOTOS
Kate Middleton Style Transformation
See Gallery
Kate Middleton Style Transformation
1985

1985: A 3 year-old Kate wearing bright stripes.

Photo: Middleton Family/WireImage

1987

1987: An adorable Kate smiles at the camera, age five.

Photo: Middleton Family/WireImage

c.1989

c.1989: Kate with sister Pippa and Father Michael in Jerash, Jordan. The Middleton Family moved to Amman, Jordan for two and a half years.

Photo: Middleton Family/WireImage

March 2005

March 2005: Kate skis in the Klosters with William and family.

Photo: Antony Jones/Brendan Bierne/UK Press via Getty Images

June 2005

June 2005: Kate attends the wedding of a friend, wearing a lace-patterned black and white skirt with a complimentary jacket and fascinator.

Photo: Mark Cuthbert/UK Press via Getty Images

June 2005

June 2005: Kate at her graduation from St. Andrews, where she met Prince William.

Photo: Michael Dunlea/AFP/Getty Images

June 2005

June 2005: Kate Middleton and Prince William on the day of their graduation ceremony at St. Andrews University.

Photo: Middleton Family/Clarence House via GettyImages

June 2005

June 2005: A casual Kate out and about with her father, graduation weekend.

Photo: Indigo/Getty Images

August 2005

August 2005: Kate, dressed in a casual sweater with a brown jacket, wore her hair up for the Gatcombe Horse Trials.

Photo: Anwar Hussein/WireImage

November 2005

November 2005: Kate and her mother, Carole Middleton, attended the Spirit of Christmas Shopping Festival in London, Kate wearing jeans and a light blue blazer.

Photo: Antony Jones/Brendan Bierne/UK Press

March 2006

March 2006: Kate wore flat boots, a long coat and Russian-style fur hat at the Cheltenham Festival with her sister Pippa.

Photo: Tim Graham/Getty Images

March 2006

March 2006: Wills made Kate laugh after she and her sister watched him play in a field game at Eton College.

Photo: Indigo/Getty Images

May 2006

May 2006: Kate looked lovely in a long cream coat and fancy fascinator at a friend's wedding.

Photo: Mark Cuthbert/UK Press

June 2006

June 2006: Kate attended the Boodles Boxing Ball, dressed in bright blue to support the sports charity Sparks.

Photo: Dominic O'Neill/Photoshot/Getty Images

June 2006

June 2006: Kate wore a floral dress and pink jacket to a store opening, letting her bangs fall to a fringe.

Photo: Dave M. Benett/Getty Images

June 2006

June 2006: Kate wore red and white polka dots to the Chakravarty Polo match, completing the look with strappy wedges and classic sunglasses.

Photo: Mark Cuthbert/UK Press

June 2006

June 2006: Kate dances with a friend at a pre-Wimbledon party, dressed in a dark floral dress.

Photo: Dave M. Benett/Getty Images

June 2006

June 2006: Kate wore one of her favorite silhouettes, a simple wrap dress, for a Polo match.

Photo: Mark Cuthbert/UK Press

July 2006

July 2006: Dressed in casual summer whites, Kate attended the Rundle Cup Day with Chelsy Davy (Prince Harry's former girlfriend) and William's cousin Zara Phillips.

Photo: Antony Jones/UK Press

July 2006

July 2006: Kate rocked white jeans and a simple cardigan at the Beaufort Polo Club.

Photo: Mark Cuthbert/UK Press

December 2006

December 2006: Kate wore a red Armani coat to the Sovereign's Parade at the Royal Military Academy.

Photo: Mark Cuthbert/UK Press

January 2007

January 2007: Kate wore this casual black and white patterned dress, arriving home from work.

Photo: FilmMagic/Getty Images

February 2007

February 2007: Showing off some not-often-seen skin, the now Duchess was out on the town with friends.

Photo: FilmMagic/Getty Images

February 2007

February 2007: Seen leaving the venue Boujis, Kate looked classic in a shimmering black jacket.

Photo: Niki Nikolova/FilmMagic

March 2007

March 2007: Back to her classic, almost professional, duds, Kate wore a matching deep green skirt and coat to the Cheltenham Festival.

Photo: Mark Cuthbert/UK Press

March 2007

March 2007: For the next day of the festival, Kate went for a mix of blues and browns, wrapping it up with a pretty scarf and beret.

Photo: Indigo/Getty Images

March 2007

March 2007: Kate and Pippa watched William play rugby in casual jeans and boots.

Photo: Antony Jones/UK Press via Getty Images

April 2007

April 2007: Kate wore a 60s-inspired dress out and about in London.

Photo: Mark Milan/FilmMagic

May 2007

May 2007: Kate wore a sweater and pencil skirt with boots to the Badminton Horse Trials, mastering that transitional time when Spring has a chill in the air.

Photo: Indigo/Getty Images

May 2007

May 2007: The Middleton sisters looked lovely at a book launch party in London.

Photo: Dave M. Benett/Getty Images

May 2007

May 2007: Kate smiles in a casual top and jeans in London.

Photo: Mel Bouzad/FilmMagic

July 2007

July 2007: Kate attended the Concert for Diana in London, wearing a white trench and black heeled boots.

Photo: Antony Jones/UK Press

July 2007

July 2007: Looking nautical in stripes and wedges, Kate was spotted in London.

Photo: Mark Milan/FilmMagic

July 2007

July 2007: Sporty-chic Kate took part in a training session with the Sisterhood Cross Channel rowing team.

Photo: Indigo/Getty Images

July 2007

July 2007: Wearing a vest over long sleeves, Kate and the rowing team practice for the Charity Boat Challenge.

Photo: Mark Cuthbert/UK Press

November 2007

November 2007: Kate attended another book launch, dressed in a simple cap-sleeved dress.

Photo: Dave M. Benett/Getty Images

January 2008

January 2008: Kate attended an afterparty following the opening night of Afrika Afrika, wearing an animal print dress.

Photo: Dave M. Benett/Getty Images

March 2008

March 2008: We love that Kate paired navy blue with black -- a look that the fashion-savvy know is super chic, but many would be afraid to do.

Photo: Mark Cuthbert/UK Press

April 2008

April 2008: Kate with Prince William after his graduation, now a Royal Air Force pilot, wearing a pretty peacoat. 

Photo: MICHAEL DUNLEA/AFP/Getty Images

May 2008

May 2008: Kate in her go-to casual look: jeans and a jacket.

Photo: Antony Jones/UK Press

June 2008

June 2008: Kate attended the Most Noble Order of the Garter service, standing with Camilla, Duchess of Cornwall in contrasting black and white.

Photo: Anwar Hussein/Getty Images

June 2008

June 2008: Always there to support, Kate watched Wills and Harry play in a charity polo match.

Photo: Mark Cuthbert/UK Press

June 2008

June 2008: Kate wore a pretty white Issa sundress with a cardigan to the Wimbledon tennis championships.

Photo: Ryan Pierse/Getty Images

July 2008

July 2008: Kate looked lovely at Lady Rose Windsor's wedding, wearing a pop of color and print with black accessories.

Photo: Antony Jones/UK Press via Getty Images

August 2008

August 2008: Kate channeled the '60s in this mod-inspired dress while out in London.

Photo: Mark Milan/FilmMagic

September 2008

September 2008: Kate attended the Day-Glo Midnight Roller Disco in London, supporting an Oxford charity.

Photo: Antony Jones/UK Press via Getty Images

June 2009

June 2009: Kate wore skinny jeans and a leather jacket to a charity Polo match in which Prince William and Harry were playing.

Photo: Anwar Hussein/WireImage

August 2009

August 2009: Kate wore a stunning blue patterned Jane Troughton coat to a friend's wedding, paired with a Jane Corbett fascinator and black court shoes.

Photo: Mark Cuthbert/UK Press via Getty Images

July 2010

July 2010: Kate chose a belted teal sundress and leather bag for the Chakravarty Cup Polo Match.

Photo: Samir Hussein/Getty Images

October 2010

October 2010: Kate and Wills attend a friend's wedding, Kate wearing a bright silk dress with a black jacket and accessories.

Photo: Mark Cuthbert/UK Press via Getty Images

November 2010

November 2010: A royal engagement! Kate's navy Issa dress from her engagement photo is one of the most sought-after dresses she's worn.

Photo: Mark Cuthbert/UK Press via Getty Images

December 2010

December 2010: The couple attended a Christmas "Spectacular," Kate dressed in contrasting black and white with a bold necklace.

Photo: Chris Jackson/Getty Images

November 2010

November 2010: For Kate and William's official engagement photos, she chose a white Reiss dress. The couple looked lovely and happy as can be!

Photo: Mario Testino

February 2011

February 2011: Kate wore all shades of neutral to launch a new RNLI lifeboat in the chilly February weather.

Photo: Samir Hussein/WireImage

February 2011

February 2011: Kate and William visit their Alma Mater, St. Andrews University, for its 600th anniversary celebrations.

Photo: Indigo/Getty Images

March 2011

March 2011: Kate wore a flared neutral trench coat while visiting Northern Ireland.

Photo: Mark Cuthbert/UK Press via Getty Images

April 2011

April 2011: The dashing couple matched in navy blue suits while visiting an athletic track in Darwen, England.

Photo: Indigo/Getty Images

April 2011

April 2011: Here comes the almost-bride... Kate smiled for the camera as she arrived at the Goring Hotel with her mom and sister the day before her wedding.  She looked stunning in a patterned Issa dress and L.K. Bennett wedges.

Photo: George Pimentel/WireImage

April 2011

April 2011: The blushing bride steps out of Westminster Abbey, stunning in her Sarah Burton for Alexander McQueen gown.

Photo: CARL DE SOUZA/AFP/Getty Images

April 2011

April 2011: The new Duke and Duchess of Cambridge kiss on the balcony of Buckingham Palace to cheers from the crowd.

Photo: George Pimentel/WireImage

April 2011

April 2011: Kate leaving Clarence House to attend the evening celebrations following her wedding to Prince William, in a pretty satin dress with an embellished belt showing off her tiny waist.

Photo: JOHN STILLWELL/AFP/Getty Images

April 2011

April 2011: Kate and William headed out for their honeymoon the day after their wedding, Kate dressed in a simple belted blue dress and her L.K. Bennett wedges.

Photo: John Stillwell - WPA Pool/Getty Images

May 2011

May 2011: The Duchess met Michelle Obama in Buckingham Palace, wearing a cap-sleeved neutral Reiss dress.

Photo: TOBY MELVILLE/AFP/Getty Images

June 2011

June 2011: Kate attended Derby Day, everyone dressed to the nines.  The Duchess was in a white Reiss dress and beige fascinator.

Photo: Indigo/Getty Images

June 2011

June 2011: Kate attended the 10th Annual ARK Gala Dinner in a stunning floor-length embellished Jenny Packham gown.

Photo: Samir Hussein/WireImage

June 2011

June 2011: Kate and her sister Pippa attend a friend's wedding, both dressed in black and white patterned dresses and matching court shoes.  

Photo: Indigo/Getty Images

June 2011

June 2011: Kate and William were the picture of elegance at the 2011 Trooping the Colour ceremony for the Queen's birthday.

Photo: Indigo/Getty Images

June 2011

June 2011: Kate wore her Jane Troughton cornflower blue brocade coat to the church service celebrating the 90th birthday of Prince Philip.

Photo: Carl Court/AFP/Getty Images

June 2011

June 2011: Kate and Camilla, Duchess of Cornwall, wearing pretty coats to the Order of the Garter Service.

Photo: Kirsty Wigglesworth/AFP/Getty Images

June 2011

June 2011: Kate wore this bold Alexander McQueen military-style coat while visiting army Barracks in Windsor.

Photo: Carl Court/AFP/Getty Images

June 2011

June 2011: Kate wore a lace Erdem shift dress and nude L.K. Bennett heels while attending the wreath-laying ceremony at the National War Memorial in Canada.

Photo: Samir Hussein/WireImage

July 2011

July 2011: Kate looks over her shoulder as she and Wills attend Canada Day celebrations in Ottowa. She was wearing a white Reiss dress with bold red accents in her fascinator and heels.

Photo: Geoff Robins/AFP/Getty Images

July 2011

July 2011: Kate was a bronzed beauty in this long-sleeved, purple Issa dress on the royal couple's Canada tour.

Photo: Samir Hussein/WireImage

July 2011

July 2011: Kate wore this grey shift dress while in Canada, with a pointed collar and cuffed sleeves.

Photo: Samir Hussein/WireImage

July 2011

July 2011: On day 4 of their Canada visit, Kate was seen in a brilliant blue Erdem dress with lace detailing on the bodice.

Photo: George Pimentel/WireImage

July 2011

July 2011: Kate wore this simple white shift during their Canada visit, carrying her favorite L.K. Bennett "Natalie" clutch.

Photo: ROGERIO BARBOSA/AFP/Getty Images

July 2011

July 2011: The newlyweds are cute and casual, in a rare embrace (public, at least!) after taking part in a dragon boat race.

Photo: Samir Hussein/WireImage

July 2011

July 2011: Kate and Wills smile at one another, the Duchess dressed in Sarah Burton for Alexander McQueen on their 5th day in Canada.

Photo: Ian Vogler - Pool/Getty Images

July 2011

July 2011: Kate looked cool and casual in boat shoes and jeans.

Photo: Samir Hussein/WireImage

July 2011

July 2011: The Duke and Duchess boarded a Canadian Airforce jet, Kate wearing J. Brand skinny jeans and L.K. Bennett slingback wedges.

Photo: Chris Jackson/Getty Images

July 2011

July 2011: Kate looked lovely in this canary yellow Jenny Packham dress, but battled with the wind at Calgary International Airport.

Photo: George Pimentel/WireImage

July 2011

July 2011: The Duke and Duchess arrived in Los Angeles, Kate in a bright green dress by one of our favorite designers, Diane von Furstenberg.

Photo: Frazer Harrison/Getty Images

July 2011

July 2011: Kate wore this grey shift by London-based designer Roksanda Ilincic while in Los Angeles.

Photo: Lionel Hahn - WPA Pool/Getty Images

July 2011

July 2011: Kate and Wills attended the BAFTA Awards, Kate showing off a tiny waist in this Sarah Burton for Alexander McQueen floor length gown.

Photo: Mark Large - Pool/Getty Images

July 2011

July 2011: Kate in Santa Barbara, in a floral Jenny Packham dress.

Photo: Chris Jackson/Getty Images

July 2011

July 2011: Kate and Wills are back in the U.K., the Duchess wearing a beige v-neck dress for the opening of the state rooms in Buckingham Palace.

Photo: John Stillwell - WPA Pool/Getty Images

August 2011

August 2011: The Duke and Duchess visited Birmingham, Kate wearing Alexander McQueen.

Photo: Chris Jackson/Getty Images

September 2011

September 2011: Kate looked lovely in Amanda Wakeley as she and William visited the Royal Marsden Hospital.

Photo: Indigo/Getty Images

October 2011

October 2011: A beautiful duo: Kate wore this crimson Beulah London gown, adding some vibrance to Fall in London.

Photo: Theodore Wood via Getty Images

November 2011

November 2011: Kate spoke with dinner guests at a reception at St. James Palace, wearing a silver one-shouldered gown.

Photo: LEFTERIS PITARAKIS/AFP/Getty Images

December 2011

December 2011: Prince William, Kate and Prince Harry arrive at the Imperial War Museum, all dressed in their black-tie best.

Photo: Rota/Anwar Hussein/Getty Images

December 2011

December 2011: Just before the holidays, the Duke and Duchess visited a homeless charity, Kate in a simple Ralph Lauren turtleneck dress.

Photo: Indigo/Getty Images

December 2011

December 2011: The royal family attended a Christmas Day service, all in chic jackets and boots as they arrived together.

Photo: Chris Jackson/Getty Images

January 2012

January 2012: Attending the premiere of War Horse in the UK, Kate wore a lace Temperley London gown.

Photo: Indigo/Getty Images

February 2012

February 2012: Kate visited the National Portrait Gallery in a belted grey jacket with a wide collar.

Photo: Indigo/Getty Images

February 2012

February 2012: Kate wore this brown Hobbs coat to visit Liverpool, pairing it with black stockings and pumps.

Photo: Samir Hussein/WireImage

February 2011

February 2011: Kate visited schools in Oxford, wearing a flared, bird-print Orla Kiely dress.

Photo: Indigo/Getty Images

March 2012

March 2012: Kate wore this slightly distressed tweed Missoni coat to tea with the Queen and Camilla. 

Photo: Jeff Spicer - WPA Pool/Getty Images

March 2012

March 2012: Kate wore this peplum skirt suit by L.K. Bennett and a James Lock hat during a visit to Leicester, England.

Photo: Indigo/Getty Images

March 2012

March 2012: Kate wore an Orla Kiely dress for a visit in South London.

Photo: MIGUEL MEDINA/AFP/Getty Images

March 2012

March 2012: Kate looked cute and casual in coral skinny jeans while playing hockey with the Olympic team.

Photo: Chris Jackson - WPA Pool /Getty Images

March 2012

March 2012: It was St. Patrick's Day, and Kate looked gorgeous in green, a belted Emilia Wickstead dress.

Photo: Chris Jackson/AFP/Getty Images

March 2012

March 2012: The Duchess is a hard worker! Helping to plant a tree, Kate still looked totally glam in a vibrant blue Reiss dress.

Photo: DAVID CRUMP/AFP/Getty Images

April 2012

In one of our favorite looks, Kate had the embellishment on the neckline of this Matthew Williamson dress added just for her -- and she looked gorgeous.

(Photo via WireImage/Getty)

May 2012

Kate shows a little leg in this sleek Roland Mouret gown.

(Photo via WireImage/Getty)

May 2012

Attending an Olympic Concert, Kate dominated the red carpet in a lace-back Jenny Packham gown.

(Photo via Getty)

May 2012

Ok, so maybe this photo is more about the puppy-love than the dress, but the Duchess still looks chic, even while playing with her and Wills' pup, Lupo!

(Photo via Getty)

May 2012

Kate is pretty in pink at the Queen's Garden Party at Buckingham Palace, wearing an Emilia Wickstead dress and classic nude heels.

(Photo via Getty)

June 2012

Kate wore a vibrant red Alexander McQueen dress, carrying a clutch by the same designer and sporting her favorite L.K. Bennett heels during the Diamond Jubilee celebrations.

(Photo via Getty)

June 2012

The Diamond Jubliee continues, and Kate is seen in a nude lace Alexander McQueen dress with a Jane Taylor fascinator.

(Photo via Getty)

June 2012

Kate waved from a carriage during the Trooping the Colour ceremony, wearing one of her favorite designers, Erdem.

(Photo via WireImage/Getty)

June 2012

Kate wore wellies to a polo match, with casual jeans and her pooch Lupo by her side.

(Photo via Getty)

June 2012

Time for the Order of the Garter, and while most members of the royal family were in pale hues, Kate's Alexander McQueen stole the show.

(Photo via Getty)

July 2012

Kate payed homage to Scotland with her clutch while she watched as Prince William was installed as a Knight of the Thistle in Edinburgh.

(Photo via Getty)

July 2012

Kate looked chic in white at Wimbledon, carrying a fun animal print clutch.

(Photo via Getty)

July 2012

Kate looked vibrant in Stella McCartney while visiting the National Portrait Gallery.

(Photo via Getty)

July 2012

Our three favorite royals wait to receive the Olympic Torch at Buckingham Palace on it's route around Britain to the Olympic Stadium.  

(Photo via Getty)

July 2012

Kate and William visited Bacon's College with Prince Harry, Kate dressed in a grey and white checked dress.

(Photo via Getty)

July 2012

Kate sparkled in this classic drape dress by Roksanda Ilincic.

(Photo via NBC/Getty)

July 2012

The Olympics took London by storm, and the young royals weren't going to miss it.  Kate sported UK colors in this striped top and navy jeans.

(Photo via Getty)

August 2012

Wills and Kate celebrate a big win for the UK during the Olympics.

(Photo via Getty)

August 2012

Kate attends the 10th day of the Olympics in a zipped-up windbreaker for the sailing events.

(Photo via Getty)

September 2012

Kate looked chic and professional at the Paralympics Day 4 medal ceremony.

(Photo via Getty)

September 2012
(Photo via WireImage/Getty)
September 2012

Kate and William kicked off the 2012 Diamond Jubilee tour in Singapore, the Duchess wearing a vibrant dress by Prabal Gurung.

(Photo via WireImage/Getty)

September 2012

On day 2, Kate wore this sheer Raoul dress and nude pumps.

(Photo via WireImage/Getty)

September 2012

She also wore a lovely Alexander McQueen skirt and jacket with Stuart Weitzman wedges.

(Photo via Getty)

September 2012

Kate looked gorgeous in a floral Erdem dress during the British Gala reception.

(Photo via AFP/Getty)

September 2012

On Day 4, Kate and William visited a Mosque, respectfully removing their shoes, Kate wore a headscarf and looked lovely in white.

(Photo via Getty)

September 2012

While in Malaysia, Kate wore an ice blue lace Temperley London dress, with her hair pulled back in a pretty updo.

(Photo via Getty)

September 2012

Kate wore a pale teal dress to visit the Memorial Cemetery in Singapore, looking back thoughtfully as she walked beside her husband.

(Photo via AFP/Getty)

September 2012

Kate wore this sparkling Alexander McQueen to a dinner with Malaysia's Head of State.

(Photo via Getty)

September 2012

The casual duo cross a bridge at a Rainforest Research center in Malaysia.

(Photo via AFP/Getty)

September 2012

On day 6, Kate and Wills arrived at the Solomon Islands, Kate dressed in a bright Jonathan Saunders dress.

(Photo via Getty)

September 2012

This yellow Jaeger shirtdress was light, bright and cool for the warm island weather.

(Photo via WireImage/Getty)

September 2012

The Duke and Duchess smiled in traditional Island clothing as they visited the Governor General's house.

(Photo via Getty)

September 2012

The royal couple boarded a plane, Kate wearing a pale yellow eyelet dress and Stuart Weitzman wedges.

(Photo via WireImage/Getty)

September 2012

Kate prepared to dance with traditional dancers, in a much cooler grass skirt than we've ever seen. 

(Photo via WireImage/Getty)

September 2012

Kate wore this navy eyelet Mulberry dress with traditional adornments during their visit, with her hair in natural waves.

(Photo via WireImage/Getty)

October 2012

Back in the UK, Kate and Wills attend the official launch of the new Football Centre, the Duchess wearing a Reiss coat.

(Photo via Getty)

October 2012

Kate bends down to receive flowers from an adorable two-year-old, looking lovely in Alexander McQueen.

(Photo via Getty)

October 2012

Kate attended a royal reception for team Great Britain's Olympic and Paralympic athletes, wearing a black floral dress with sheer sleeves.

(Photo via Getty)

November 2012

Kate dons her lace Temperley London gown once more, this time adding a pop of red with her Alexander McQueen clutch.

(Photo via Getty)

November 2012

Kate was glowing in an emerald green Mulberry dress for an opening at the Natural History Museum.

(Photo via Getty)

November 2012

Kate wore this MaxMara Studio coat over a leopard-print dress for her and William's first visit to Cambridge.

(Photo via UK Press/Getty)

November 2012

Kate played hockey in Alexander McQueen while visiting St. Andrews University.

(Photo via Getty)

December 2012

Kate left the hospital, after being admitted for severe morning sickness, in a navy coat by Diane von Furstenberg.

(Photo via Getty)

January 2013

Kate looks on in a pretty Whistles dress after viewing her first official portrait.

(Photo via AFP/Getty)

February 2013

Kate showed off her baby bump in a patterned MaxMara dress and simple pumps during a visit to Hope House. 

(Photo via Getty)

March 2013

Kate visited Grimsby in a gorgeous brown Hobbs coat, with her baby bump just starting to show.

(Photo via WireImage/Getty)

March 2013

Kate attended the fourth and final day of the Cheltenham Festival in a gorgeous peach wool coat by Joseph.

(Photo via Getty)

March 2013

The Duchess of Cambridge attended the St Patrick's Day Parade at Mons Barracks in the same gorgeous green Emilia Wickstead coat of the previous year.

(Photo via Getty)

March 2013

Kate Middleton wore this black Topshop dress as she visited the headquarters of Child Bereavement UK.

(Photo via Getty)

March 2013

Dressed in a pretty white Redgrave Goat collarless coat over a dress from Topshop, Kate visited the headquarters of Child Bereavement UK.

(Photo via Getty)

March 2013

Kate visits the Baker Street Underground Station in this teal Malene Birger coat, and true to royal style: a pretty black fascinator.

(Photo via Getty)

March 2013

Kate visited the Great Tower Scout camp, keeping warm in green rain boots, a green army jacket and a knit crochet hat.

(Photo via Getty)

April 2013

During a visit to Scotland,  Kate and Wills met well wishers, played some ping pong, field hockey and basketball while she wore this tartan coat by British brand moloh.

(Photo via Getty)

April 2013

Kate donned her red Armani coat, as seen on her in 2006, for the visit to Scotland.

(Photo via AFP/Getty)

April 2013

Kate attended the National Review of the Queen's Scouts, wearing a mint green Mulberry Coat, Whiteley fascinator and her L.K. Bennett pumps.  As you can see, the Duchess finally popped and her baby bump was fully visible.

(Photo via Getty)

April 2013

Kate visited a primary school in a pretty Erdem floral dress.

(Photo via AFP/Getty)

April 2013

Kate attended an event at the National Portrait Gallery, wearing a '50s-inspired, powder blue Emilia Wickstead dress and grey suede pumps. 

(Photo via WireImage/Getty)

April 2013

Kate visited the Harry Potter sets at Warner Bros with William and Harry, wearing in a polka-dot dress by Topshop.

(Photo via Getty)

April 2013

Kate visited Naomi House on the day of her wedding anniversary, wearing a peach coat by Tara Jarmon.

(Photo via WireImage/Getty)

May 2013

Kate was bold and bright at this year's Garden Party, wearing a bespoke version of the Marella coat by Emilia Wickstead.

(Photo via AFP/Getty)

June 2013

Kate looked positively lovely at the Queen's Coronation service in one of her favorite designers, Jenny Packham, a light peach, almost nude lace empire-waisted dress.

(Photo via Getty)

June 2013

Kate was glowing as she named a cruise ship in a printed Hobbs coat.

(Photo via Getty)

June 2013

For her last official appearance before giving birth, the Duchess chose pale pink Alexander McQueen at the 2013 Trooping the Colour.

(Photo via UK Press/Getty)

July 2013

Kate wore a bespoke Jenny Packham blue polka dotted dress when she presented her son to the world, and she looked lovely.

(Photo via FilmMagic/Getty)

July 2013

When Will and Kate took off to go visit her parents in Bucklebury for the first few weeks after George's birth, she wore a dress by Seraphine perfect for new moms.

(Photo via Rex USA)

July 2013

Kate definitely had a new mom glow about her when she left the Lindo Wing of St. Mary's Hospital.

(Photo via Getty)

August 2013

Kate and William pose with Prince George for the family's first official portraits at her family's home.

(Photo via Michael Middleton)

August 2013

Kate wore another Seraphine knot-front dress for the photo while William was casual in a gingham button down.  And in this photo, both the Middletons' family dog and Lupo made the cut!

(Photo via Getty)

September 2013

Kate and William attended a gala for the Tusk Trust, Kate glittering in Jenny Packham.

(Photo via Getty)

August 2013

Kate joined William out and about in Anglesey, wearing a Zara top, Paige denim jeans and a Ralph Lauren jacket.

(Photo via Splash News)

October 2013

Kate attended the SportsAid Athlete Workshop just a few months after having Prince George. She wore a pre-pregnancy outfit: her J.Brand skinny jeans, Ralph Lauren striped top, navy Smythe blazer and Stuart Weitzman wedges.

(Photo via AFP/Getty)

October 2013

Kate chose Alexander McQueen for Prince George's Christening.

(Photo via AFP/Getty)

October 2013

Kate attended a charity gala the following day, wearing an elegant navy Jenny Packham gown.

(Photo via Getty)

November 2013

In honor of Poppy Day, William and Kate stepped out in London -- Kate wearing her long scarlet L.K. Bennett coat.

(Photo via AFP/Getty)

November 2013

Kate wore a pretty black Temperley coat to honor Remembrance Day in London, wearing her hair in ringlets.

(Photo via Getty)

November 2013

Kate recycled an Orla Kiely dress and her Aquatalia boots for a charity visit with William.

(Photo via WireImage/Getty)

November 2013

Kate looked lovely in London, wearing an Orla Kiely skirt and MaxMara coat as she received flowers from a young girl.

(Photo via Getty)

November 2013

Kate attended the SportsBall, donning a laser-cut, black lace Temperley London cocktail dress, paired with her Jimmy Choo heels and Alexander McQueen clutch.

(Photo via WireImage/Getty)

July 2015
Catherine, Duchess of Cambridge attends day nine of the Wimbledon Tennis Championships at Wimbledon on July 8, 2015 in London, England.
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