And the bride-to-be wore cream: Nicky Hilton wows in lace mini-dress as she joins fiancé James Rothschild at pre-wedding party just hours before their big day

She has always been the more demure of the Hilton sisters.

But Nicky Hilton seems determined to ensure her big day is the most talked about society wedding this year.

The hotel heiress is set to walk down the aisle with her fiance James Rothschild at Kensington Palace on Friday.

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The countdown begins: Nicky Hilton and her fiance James Rothschild arrive for the pre-wedding party in St. James's on Thursday evening

The countdown begins: Nicky Hilton and her fiance James Rothschild arrive for the pre-wedding party in St. James's on Thursday evening

Practice makes perfect: Nicky carefully navigated her steps as she strutted in pointed nude stilettos 

Practice makes perfect: Nicky carefully navigated her steps as she strutted in pointed nude stilettos 

And the couple kicked off the celebrations early by gathering their well-heeled family and friends in Central London for a pre-wedding party on Thursday evening.

The 31-year-old bride-to-be looked sensational as she arrived at Spencer House in St James on the arm of her handsome beau, a member of the extremely wealthy Rothschild banking family.

Taking inspiration from her upcoming big day, Nicky showed off her legs in an exquisitely detailed cream lace mini-dress, which featured long sleeves and a high neck. 

Bride chic: The 31-year-old took inspiration from her big day by wearing a stunning cream lace mini-dress as she posed alongside her husband-to-be

Bride chic: The 31-year-old took inspiration from her big day by wearing a stunning cream lace mini-dress as she posed alongside her husband-to-be

Walk the aisle in white

Wedding bells are fast approaching for Nicky Hilton and James Rothschild. They celebrated their upcoming marriage with a pre-marriage party...rich people find a reason to throw a party prior to the actual party #goodliving.

Nicky and her fiance arrived at Spencer House looking like a beautiful duo. While James wore a classic navy suit, Nicky wore a beautiful white floral lace mini dress with nude Christian Louboutin pumps.

The dress is by none other that Valentino from the Fall/Winter 2013 collection, which means it is sadly not available.

What you can do is head over to Net-a-Porter and shop the available Valentino collection OR take a look at our style carousel below.

Who says you have to be a bride to wear white? Our favorite pick is from Couture Candy and Free People, pair your choice of dress with nude pumps and you'll be well on your way down the aisle like Nicky...the aisle of fashion that is.

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Handsome couple: James, 30, a member of one of world's richest dynasties, looked dapper in a navy suit as he posed for pictures alongside his socialite fiancee

Handsome couple: James, 30, a member of one of world's richest dynasties, looked dapper in a navy suit as he posed for pictures alongside his socialite fiancee

Next walk - the aisle: The pair will wed in an extravagant ceremony at Kensington Palace on Friday

Next walk - the aisle: The pair will wed in an extravagant ceremony at Kensington Palace on Friday

Showstopping bridesmaid: Nicky's older sister Paris ensured she wasn't overlooked as she arrived in a racy black evening gown

Showstopping bridesmaid: Nicky's older sister Paris ensured she wasn't overlooked as she arrived in a racy black evening gown

Best foot forward: The reality TV regular showed off her legs in the sequinned number, split to the thigh

Best foot forward: The reality TV regular showed off her legs in the sequinned number, split to the thigh

Walk the walk: The 34-year-old will follow her sibling down the aisle at The Orangery in the grounds of the palace

Walk the walk: The 34-year-old will follow her sibling down the aisle at The Orangery in the grounds of the palace

In good company: Paris was seen cuddling up to her new beau Thomas Gross as the party started

In good company: Paris was seen cuddling up to her new beau Thomas Gross as the party started

The couple posed on the steps as they made their way into the event, kick-starting a weekend of extravagant partying.

On hand to support Nicky at the bash was her more ostentatious sibling Paris, 34.

The sociliate and reality TV regular certainly made an entrance at the grand address, strutting into the party wearing a floor-length black gown with a thigh high split.

Family function: Nicky's parents Richard and Kathy beamed as they stood at the entrance of the venue

Family function: Nicky's parents Richard and Kathy beamed as they stood at the entrance of the venue

Father of the bride: Richard, 59, was in good spirits as he kept cool with an iced beverage

Father of the bride: Richard, 59, was in good spirits as he kept cool with an iced beverage

Good neighbour: Holly Valance put on a bust display as she sported a LBD with a keyhole feature for the well-heeled bash

Good neighbour: Holly Valance put on a bust display as she sported a LBD with a keyhole feature for the well-heeled bash

Billionaire's club: The former soap star was joined by her property developer husband Nick Candy

Billionaire's club: The former soap star was joined by her property developer husband Nick Candy

The thigh's the limit: Another wealthy reveller was Petra Stunt, who showed off her legs in a split black skirt matched with a pearl-embroidered top

The thigh's the limit: Another wealthy reveller was Petra Stunt, who showed off her legs in a split black skirt matched with a pearl-embroidered top

Social scene: The Formula One heiress was accompanied by her own billionaire beau, businessman James Stunt

Social scene: The Formula One heiress was accompanied by her own billionaire beau James Stunt

Strike a pose: Ecclestone and businessman Stunt have been married for almost four years 

Strike a pose: Ecclestone and businessman Stunt have been married for almost four years 

Guest of honour: Naomi glittered in a metallic mini dress as she also made an appearance at the party

Guest of honour: Naomi glittered in a metallic mini dress as she also made an appearance at the party

She's still got it! Naomi showed off her supermodel frame in the thigh skimming cut out number

She's still got it! Naomi showed off her supermodel frame in the thigh skimming cut out number

Other connected guests included Formula One billionaire Bernie Ecclestone's glamorous daughter Petra Stunt, who was on the arm of her businessman husband James.

Singer Holly Valance also arrived in a short black dress, and put on a busty display thanks to the frock's keyhole design. 

She was joined by her own billionaire beau, property developer Nick Candy.

It's a family affair! Lord Jacob Rothschild arrived at the star studded soirée with Sabrina Guinness

It's a family affair! Lord Jacob Rothschild arrived at the star studded soirée with Sabrina Guinness

Unbreakable bond: Sabrina was joined by her sister Julia Samuel, one of Prince George of Cambridge's seven godparents,  who attended the bash with her daughter

Unbreakable bond: Sabrina was joined by her sister Julia Samuel, one of Prince George of Cambridge's seven godparents,  who attended the bash with her daughter

Dressed for the occasion: Hannah Rothschild, Lady Serena Rothschild and Victoria Rothschild Gray (L-R)

Dressed for the occasion: Hannah Rothschild, Lady Serena Rothschild and Victoria Rothschild Gray (L-R)

He looks dapper; British financier Sir Evelyn de Rothschild wore a two piece blue suit 

He looks dapper; British financier Sir Evelyn de Rothschild wore a two piece blue suit 

What tube strike? It was a date night for Crown Prince Pavlos with his wife Crown Princess Marie-Chantal of Greece
Date night: Florence Brudenell-Bruce and her husband Henry Edward Hugh St George

What tube strike? It was a date night for Crown Prince Pavlos with his wife Crown Princess Marie-Chantal of Greece, and Florence Brudenell-Bruce and her husband Henry Edward Hugh St George

Keeping hydrated! Piers Adams held onto a bottle of water as he posed with his wife Sophie

Keeping hydrated! Piers Adams held onto a bottle of water as he posed with his wife Sophie

Friends in high places... Investment banker Alexander Hood, 4th Viscount Bridport was in attendance too

Friends in high places... Investment banker Alexander Hood, 4th Viscount Bridport was in attendance too

It may have been packed with the world's wealthy elite, but the party wasn't missing a political heavy weight or two.

Chelsea Clinton, daughter of former US president Bill and future White House hopeful Hillary, also arrived alongside her husband Marc Mezvinsky.

Nicky and James have been dating since 2011, and the wealthy Brit proposed last August while visiting Italy's Lake Como. 

Political heavyweight: Chelsea Clinton, daughter of former US president Bill and future White House hopeful Hillary, also arrived alongside her husband Marc Mezvinsky

Political heavyweight: Chelsea Clinton, daughter of former US president Bill and future White House hopeful Hillary, also arrived alongside her husband Marc Mezvinsky

In good company: Chelsea flashed her whites as she posed for a picture with Countess Maya Von Schoenburg

In good company: Chelsea flashed her whites as she posed for a picture with Countess Maya Von Schoenburg

Getting the wheels in motions: The Countess was all smiles as she shared a joke with Dame Vivien Duffield

Getting the wheels in motions: The Countess was all smiles as she shared a joke with Dame Vivien Duffield

Here come the boys... Dave Clark, William Aitken and Isaac Ferry (L-R) were all also in tow at the celebration
Here come the boys... Dave Clark, William Aitken and Isaac Ferry (L-R) were all also in tow at the celebration
Here come the boys... Dave Clark, William Aitken and Isaac Ferry (L-R) were all also in tow at the celebration

Here come the boys... Dave Clark, William Aitken and Isaac Ferry (L-R) were all also in tow at the celebration

Catching up: Outside the venue Isaac was pictured chatting away with Ben Goldsmith

Catching up: Outside the venue Isaac was pictured chatting away with Ben Goldsmith

Stylish guests: Ben  looked very happy as he posed with his wife Jemima Goldsmith (R) and Mary-Clare Elliot

Stylish guests: Ben looked very happy as he posed with his wife Jemima Goldsmith (R) and Mary-Clare Elliot

Trying it out for size... Jemima looked comfortable as she checked out Stunt's Rolls Royce

Trying it out for size... Jemima looked comfortable as she checked out Stunt's Rolls Royce

Speaking about her desire to lay on her nuptials away from her native US, Nicky explained: 'I’ve always wanted a destination wedding and I love London, so I’m leaning towards London.'

They will exchange vows in The Orangery at the palace, close to the London residence of Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge. 

This will actually mark the second wedding for Nicky, who married childhood friend Todd Andrew Meister in Las Vegas 10 years ago, only for the marriage to be annulled three months later. 

Joining the festivities: Interior designer and socialite Nicky Haslam arrived with a stylish guest

Joining the festivities: Interior designer and socialite Nicky Haslam arrived with a stylish guest

Royal connection: Princess Beatrice's boyfriend Dave Clark (right), who works for Richard Branson, also attended with two pals

Royal connection: Princess Beatrice's boyfriend Dave Clark (right), who works for Richard Branson, also attended with two pals

Arriving in style: A fleet of luxury cars were seen pulling up to the venue as guests arrived for the party

Arriving in style: A fleet of luxury cars were seen pulling up to the venue as guests arrived for the party

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