Skip to main content

Lorena Sarbu

Lorena Sarbu 2000's Black Lacey Plunging Neckline Gown with Train
Lorena Sarbu 2000's Black Lacey Plunging Neckline Gown with Train

Lorena Sarbu 2000's Black Lacey Plunging Neckline Gown with Train

Located in Los Angeles, CA

Absolutely ravishing black tie gown attributed to Lorena Sarbu. The plunging neckline draws the eye

Category

21st Century and Contemporary American Ball Gowns

Lorena Sarbu Green Leather and Silk Beaded Mini Dress
Lorena Sarbu Green Leather and Silk Beaded Mini Dress

Lorena Sarbu Green Leather and Silk Beaded Mini Dress

Located in Los Angeles, CA

This stunning Lorena Sarbu dress is serpentine sex-appeal in a modern setting. Immaculately beaded

Category

21st Century and Contemporary Mini Dress

Lorena Sarbu Fall RTW Black Peek-A-Boo Beaded Bodice Gown, 2014
Lorena Sarbu Fall RTW Black Peek-A-Boo Beaded Bodice Gown, 2014

Lorena Sarbu Fall RTW Black Peek-A-Boo Beaded Bodice Gown, 2014

Located in Los Angeles, CA

Show-stopping evening gown by Lorena Sarbu. Heavily beaded bodice with peek-a-boo mesh panels at

Category

21st Century and Contemporary Evening Gowns

Orange jacquard one shoulder cocktail dress LORENA SARBU
Orange jacquard one shoulder cocktail dress LORENA SARBU

Orange jacquard one shoulder cocktail dress LORENA SARBU

Located in Saint-Ouen-Sur-Seine, FR

Orange jacquard one shoulder cocktail dress. No fabric composition tag but probably rayon. Zip closure on the left side. SIZE XS

Category

2010s Unknown Cocktail Dresses

Lorena Sarbu Black Metallic Lace Flutter Sleeve Gown
Lorena Sarbu Black Metallic Lace Flutter Sleeve Gown

Lorena Sarbu Black Metallic Lace Flutter Sleeve Gown

Located in Los Angeles, CA

This spectacular gown is a mix between 30s feminine and 90s edgy. A metal ring waist is that pop of industrial chic we love to see. This is a three layer gown with an interior beige ...

Category

21st Century and Contemporary Evening Gowns

Yellow silk chiffon evening bustier dress Lorena Sarbu
Yellow silk chiffon evening bustier dress Lorena Sarbu

Yellow silk chiffon evening bustier dress Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Yellow silk chiffon evening bustier dress. Boned bustier inside with padded bra with zip and hook&eye closure in the middle back. Hidden zip closure in the middle back on the dress....

Category

2010s Unknown Evening Dresses

Silk silver sequin asymmetrical cocktail dress Lorena Sarbu New
Silk silver sequin asymmetrical cocktail dress Lorena Sarbu New

Silk silver sequin asymmetrical cocktail dress Lorena Sarbu New

Located in Saint-Ouen-Sur-Seine, FR

Silk silver sequin asymmetrical cocktail dress with silk lining. Zip and hook&eye on the right side. New with tag. SIZE XXS

Category

2010s Unknown Cocktail Dresses

Lorena Sarbu Black & White Warped Floral Silk Halter Neck Gown, 2000s
Lorena Sarbu Black & White Warped Floral Silk Halter Neck Gown, 2000s

Lorena Sarbu Black & White Warped Floral Silk Halter Neck Gown, 2000s

Located in Los Angeles, CA

Cross Neck Warp Silk Black & White Floral Halter Neck Gown. Featuring two straps extending from the center front and back. Straps can be fashioned on one side to be a 1-shoulder...

Category

21st Century and Contemporary Evening Gowns

Black sequin lace appliqué on ivory silk  cocktail dress Lorena Sarbu
Black sequin lace appliqué on ivory silk  cocktail dress Lorena Sarbu

Black sequin lace appliqué on ivory silk cocktail dress Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Black sequin lace appliqué on ivory silk cocktail dress. Boned tulle bustier inside the dress with padded bra. Silk lining. Zip and hook&eye in the middle back. SIZE 2(Us) / XS

Category

2010s American Cocktail Dresses

Asymmetrical pastel evening dress with flowers appliqué on lace Lorena Sarbu
Asymmetrical pastel evening dress with flowers appliqué on lace Lorena Sarbu

Asymmetrical pastel evening dress with flowers appliqué on lace Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Asymmetrical pastel evening dress with flowers appliqué with rhinestone on silver lurex lace. Organza ruffles on the neckline. Invisible zip and hook&eye on the left side.Fabric comp...

Category

21st Century and Contemporary American Evening Dresses

Black silk evening dress with lace and rhinestone waist band Lorena Sarbu
Black silk evening dress with lace and rhinestone waist band Lorena Sarbu

Black silk evening dress with lace and rhinestone waist band Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Black silk evening dress with lace and rhinestone waist band. Draped bust. Wrap on the skirt part with ruffles. Zip and hook&eye closure in the middle back. Boned on the bust. Total...

Category

2010s American Evening Dresses

Pale yellow evening dress with tulle, beads and sequin inset Lorena Sarbu
Pale yellow evening dress with tulle, beads and sequin inset Lorena Sarbu

Pale yellow evening dress with tulle, beads and sequin inset Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Pale yellow evening dress with tulle, beads and sequin inset. No fabric tag composition but probably rayon. Longer in the back than in the front ( front lenght: 170 cm and back leng...

Category

2010s Evening Dresses

Silk cocktail dress with leopard print and beadwork Lorena Sarbu New with tag
Silk cocktail dress with leopard print and beadwork Lorena Sarbu New with tag

Silk cocktail dress with leopard print and beadwork Lorena Sarbu New with tag

Located in Saint-Ouen-Sur-Seine, FR

Silk cocktail dress with leopard print and beadwork . Polyester lining. New with tag and extra beads . Invisible zip on the middle back + hook&eye. Padded bra. Draped on the side an...

Category

2010s Chinese Cocktail Dresses

Navy blue evening gown in twill silk and embroideries with drag Lorena Sarbu
Navy blue evening gown in twill silk and embroideries with drag Lorena Sarbu

Navy blue evening gown in twill silk and embroideries with drag Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Navy blue evening gown in twill silk and embroideries ( black rhinestone, beads and thread) with drag and flare bottom. Silk lining. Stiff tulle petticoat with ruffles under the fla...

Category

2010s Unknown Evening Gowns

Navy blue evening dress with black lace, sequin and beads inset Lorena Sarbu
Navy blue evening dress with black lace, sequin and beads inset Lorena Sarbu

Navy blue evening dress with black lace, sequin and beads inset Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Navy blue evening dress with black lace, sequin and beads inset. Main fabric composition: 71% triacetate, 29% polyester. Silk lining. See-through on the side, back and shoulders. Zi...

Category

2010s American Evening Dresses

Red silk evening dress with embroideries on tulle on the top Lorena Sarbu
Red silk evening dress with embroideries on tulle on the top Lorena Sarbu

Red silk evening dress with embroideries on tulle on the top Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Red silk evening dress with embroideries on tulle on the top. Main fabric: silk. Lining: 95% silk, 5% spandex. Zip and hook&eye in the middle back. Total lenght in the front: 154 c...

Category

2010s Unknown Evening Dresses

Pale pink evening dress in lace with gold lurex and tulle Lorena Sarbu New
Pale pink evening dress in lace with gold lurex and tulle Lorena Sarbu New

Pale pink evening dress in lace with gold lurex and tulle Lorena Sarbu New

Located in Saint-Ouen-Sur-Seine, FR

Pale pink evening dress in lace with gold lurex and tulle. Waist band in gros-grain on the waist. Bustier inside the bust. Zip and hook&eye in the middle back. New with tag SIZE M

Category

2010s European Evening Dresses

Recent Sales

Lorena Sarbu White Jeweled Caftan
Lorena Sarbu White Jeweled Caftan

Lorena Sarbu White Jeweled Caftan

Located in Los Angeles, CA

This elegant white Lorena Sarbu caftan is perfect for special occasions. Trimmed in beads, it

Category

21st Century and Contemporary Kaftans

Lorena Sarbu Purple Silk Caftan w/Sequins and Beading
Lorena Sarbu Purple Silk Caftan w/Sequins and Beading

Lorena Sarbu Purple Silk Caftan w/Sequins and Beading

Located in Los Angeles, CA

This elegant deep purple Lorena Sarbu caftan is perfect for special occasions. Trimmed in beads, it

Category

21st Century and Contemporary Caftans

Evening dress in peach color chiffon and sequin Lorena Sarbu
Evening dress in peach color chiffon and sequin Lorena Sarbu

Evening dress in peach color chiffon and sequin Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Evening dress in peach color chiffon and sequin. Boned lingerie bustier on a tulle base inside the bust. Gros-grain waist band and gros grain piping. SIZE 36 (S)

Category

2010s European Evening Dresses

Pastel printed evening bustier dress with rhinestone embellishement Lorena Sarbu
Pastel printed evening bustier dress with rhinestone embellishement Lorena Sarbu

Pastel printed evening bustier dress with rhinestone embellishement Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Pastel printed evening bustier dress with rhinestone embellishement. Boned. Zip and hook&eye in the middle back. Ruffles. NEW WITH TAG. SIZE 38 (S)

Category

2010s European Evening Dresses

Silk ivory evening dress with drapped, ruffles and embroideries Lorena Sarbu
Silk ivory evening dress with drapped, ruffles and embroideries Lorena Sarbu

Silk ivory evening dress with drapped, ruffles and embroideries Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Silk ivory evening dress with drapped, ruffles and sequins and rhinestone embroideries. Silk lining as well. Bustier inside with zip and hook&eye closure on the left side. 2nd zip ...

Category

2010s American Evening Dresses

Bicolore blush and orange bustier and asymmetrical evening dress Lorena Sarbu
Bicolore blush and orange bustier and asymmetrical evening dress Lorena Sarbu

Bicolore blush and orange bustier and asymmetrical evening dress Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Bicolore blush and pale orange bustier and asymmetrical evening dress. No fabric tag composition but the 2 main fabric are probably silk chiffon and silk lining. Boned tulle bustier ...

Category

2010s Unknown Evening Dresses

Pastel printed chiffon evening dress drapé on the bust Lorena Sarbu NEW
Pastel printed chiffon evening dress drapé on the bust Lorena Sarbu NEW

Pastel printed chiffon evening dress drapé on the bust Lorena Sarbu NEW

Located in Saint-Ouen-Sur-Seine, FR

Pastel printed chiffon evening dress drape on the bust. Split in the middle front =70cm Boned. Zip in the middle back. NEW with tag. SIZE 36 (S)

Category

2010s European Evening Dresses

Pale pink asymmetrical evening dress with one sleeve with flowers Lorena Sarbu
Pale pink asymmetrical evening dress with one sleeve with flowers Lorena Sarbu

Pale pink asymmetrical evening dress with one sleeve with flowers Lorena Sarbu

Located in Saint-Ouen-Sur-Seine, FR

Pale pink asymmetrical evening dress with one sleeve with fabric flowers appliqué on a tulle base. No fabric composition tag but the main fabric is probably rayon and the lining in ...

Category

2010s Unknown Evening Dresses

Long evening dress in pale pink faille with embroideries Lorena Sarbu No brand
Long evening dress in pale pink faille with embroideries Lorena Sarbu No brand

Long evening dress in pale pink faille with embroideries Lorena Sarbu No brand

Located in Saint-Ouen-Sur-Seine, FR

Long evening dress in pale pink faille with embroideries. Drape on the bust. Cut-work on the bust. Boned. Zip and hook&eye in the middle back. Hook&eye behind the neck. SIZE M .No br...

Category

2010s American Evening Dresses

People Also Browsed

Jean Paul Gaultier Blush Crinkle Silk Chiffon Rib Knit Yoke Skirt, 2000s
Jean Paul Gaultier Blush Crinkle Silk Chiffon Rib Knit Yoke Skirt, 2000s

Jean Paul Gaultier Blush Crinkle Silk Chiffon Rib Knit Yoke Skirt, 2000s

By Jean Paul Gaultier

Located in Boca Raton, FL

Jean Paul Gaultier’s designs always have a particular erotic drama to them. From his cone-bra corset designed for Madonna, Gaultier tends to create garments that convey an apocalypti...

Category

21st Century and Contemporary Italian Skirts

Atelier Versace Magical Golden Waterfall Swan Tail Dress Gown
Atelier Versace Magical Golden Waterfall Swan Tail Dress Gown

Atelier Versace Magical Golden Waterfall Swan Tail Dress Gown

By Gianni Versace Couture, Atelier Versace

Located in Los Angeles, CA

Atelier Versace custom-made beaded gown fashioned of golden champagne gossamer silk. Gown features halter sweetheart neckline, corset interior boned bodice, open T-back; fully line...

Category

21st Century and Contemporary Evening Gowns

John Galliano Spring 2001 Fuchsia and Gold Metallic Bias Cut Slip Gown
John Galliano Spring 2001 Fuchsia and Gold Metallic Bias Cut Slip Gown

John Galliano Spring 2001 Fuchsia and Gold Metallic Bias Cut Slip Gown

By John Galliano

Located in Paris, FR

Striking evening gown from John Galliano, Spring–Summer 2001 collection period. The dress is cut in a saturated fuchsia jersey enhanced with fine gold metallic thread, producing a sh...

Category

Early 2000s French Evening Gowns

2000s KRIZIA Sheer micro mini beaded yellow
2000s KRIZIA Sheer micro mini beaded yellow

2000s KRIZIA Sheer micro mini beaded yellow

$340Sale Price|60% Off

Size: 0-6

2000s KRIZIA Sheer micro mini beaded yellow

By Krizia

Located in Austin, TX

2000s KRIZIA Sheer mini beaded nylon and spandex with beading Condition: Excellent 33" bust, 30" waist, 31" hips, 29" length One size ( fits US 0 - 6 ) 

Category

Early 2000s Unknown Cocktail Dresses

Haute-Couture Chanel coat-dress pink wild silk
Haute-Couture Chanel coat-dress pink wild silk

Haute-Couture Chanel coat-dress pink wild silk

By Chanel

Located in Saint-Ouen-Sur-Seine, FR

Haute-Couture Chanel coat-dress shall numbered in pink wild silk and mother of pearl buttons

Category

1970s American Cocktail Dresses

Giorgio Armani Vintage Dress Hand Beaded Fleurette on Tulle Formal Gown 40
Giorgio Armani Vintage Dress Hand Beaded Fleurette on Tulle Formal Gown 40

Giorgio Armani Vintage Dress Hand Beaded Fleurette on Tulle Formal Gown 40

By Giorgio Armani

Located in Miami, FL

Mightychic offers a rare and vintage Giorgio Armani gown so divinely exquisite that it can take you from the Red Carpet to the White House. Breathtaking and the epitome of the Giorgi...

Category

1990s Italian Evening Dresses

F/W 1998 Givenchy by Alexander McQueen Runway Sheer Black Lace Blue Stretch Gown
F/W 1998 Givenchy by Alexander McQueen Runway Sheer Black Lace Blue Stretch Gown

F/W 1998 Givenchy by Alexander McQueen Runway Sheer Black Lace Blue Stretch Gown

By Alexander McQueen, Givenchy

Located in West Hollywood, CA

From Alexander McQueen's Fall/Winter 1998 "Blade Runner" collection for Givenchy, this sheer black lace gown features striking a blue underlay. Inspired by the retro-futuristic costu...

Category

1990s French Evening Dresses and Gowns

Emilio Pucci S/S 2012 Runway Unworn Embellished Sheer Lace Cutout Mini Dress
Emilio Pucci S/S 2012 Runway Unworn Embellished Sheer Lace Cutout Mini Dress

Emilio Pucci S/S 2012 Runway Unworn Embellished Sheer Lace Cutout Mini Dress

By Emilio Pucci

Located in Englishtown, NJ

Emilio Pucci S/S 2012 Runway Unworn Embellished Sheer Lace Cutout Gold Mini Dress Look 31 from the Spring 2012 Collection by Peter Dundas. Size: IT 40 Condition: Unworn with addi...

Category

2010s Evening Dresses and Gowns

Mignon Paris Draped Silk Dress 1950s
Mignon Paris Draped Silk Dress 1950s

Mignon Paris Draped Silk Dress 1950s

By Mignon

Located in Water Mill, NY

A stunning black silk dress from Mignon Paris. It is sleeveless with a draped portrait collar, fitted waist and a full skirt- a feat of draping and ruching. The dress has a back pai...

Category

1950s French Day Dresses

Valentino Blue & Metallic Gold Lace Party Dress 2016
Valentino Blue & Metallic Gold Lace Party Dress 2016

Valentino Blue & Metallic Gold Lace Party Dress 2016

By Valentino

Located in Los Angeles, CA

Resurrection Vintage is excited to offer a Valentino metallic blue and gold lace evening dress featuring a fitted bodice with a gathered neckline, a halter neck with grey silk ties t...

Category

21st Century and Contemporary Italian Evening Dresses and Gowns

2000S JOHN GALLIANO CHRISTIAN DIOR Olive Green Silk Chiffon One Shoulder Dress
2000S JOHN GALLIANO CHRISTIAN DIOR Olive Green Silk Chiffon One Shoulder Dress

2000S JOHN GALLIANO CHRISTIAN DIOR Olive Green Silk Chiffon One Shoulder Dress

By John Galliano

Located in New York, NY

Beautifully made with an internal corset to keep the shape of the dress. Some damage due to young rich girls who's mother's taught them no sense of decorum. Damage is on side where t...

Category

Early 2000s French Day Dresses

John Galliano for Christian Dior One Shoulder Silk Dress
John Galliano for Christian Dior One Shoulder Silk Dress

John Galliano for Christian Dior One Shoulder Silk Dress

By John Galliano, Christian Dior

Located in Water Mill, NY

A beautiful ethereal one shoulder dress from Christian Dior comprised of layers of semi sheer black silk over an opaque silk under dress. It has one shoulder with 2 panels of softly...

Category

Early 2000s French Evening Dresses and Gowns

NARCISO RODRIGUEZ 2018 Silk Soft Pink/Peach Gown Maxi Dress
NARCISO RODRIGUEZ 2018 Silk Soft Pink/Peach Gown Maxi Dress

NARCISO RODRIGUEZ 2018 Silk Soft Pink/Peach Gown Maxi Dress

By Narciso Rodriguez

Located in Leonardo, NJ

Narciso Rodriguez 2018 Original Price $2,995 Special Capsule Collection for Barneys NY The most adorable softest baby pink color bordering on peach Pullover Lined 100% silk IT40 fits...

Category

2010s Evening Gowns

John Galliano for Christian Dior Lace up Silk Dress
John Galliano for Christian Dior Lace up Silk Dress

John Galliano for Christian Dior Lace up Silk Dress

By John Galliano, Christian Dior

Located in Water Mill, NY

A fabulous black fine silk dress with stretch from Christian Dior. It has a scoop neck front and back with intricate lacing starting at one shoulder crossing the front and back wrap...

Category

Early 2000s French Evening Dresses and Gowns

John Galliano for Christian Dior Silk Ruffle Hem Dress
John Galliano for Christian Dior Silk Ruffle Hem Dress

John Galliano for Christian Dior Silk Ruffle Hem Dress

By John Galliano, Christian Dior

Located in Water Mill, NY

A gorgeous silk dress by John Galliano for Christian Dior in brightly colored flowers on a navy and burgundy background. The spaghetti strap bodice is semi fitted and adorned on one ...

Category

1990s Italian Day Dresses

Gianni Versace Couture Vintage 1990s Draped Medusa Button Black Cocktail Dress
Gianni Versace Couture Vintage 1990s Draped Medusa Button Black Cocktail Dress

Gianni Versace Couture Vintage 1990s Draped Medusa Button Black Cocktail Dress

By Gianni Versace Couture, Gianni Versace

Located in Sparks, NV

Amazing and collectible 1990s asymmetric black dress by Gianni Verace Couture. Iconic Medusa button on one shoulder and Grecian style draping. A rare piece! Details Unlined Si...

Category

Late 20th Century Italian Day Dresses

Get Updated with New Arrivals
Save "Lorena Sarbu", and we’ll notify you when there are new listings in this category.

Lorena Sarbu For Sale on 1stDibs

On 1stDibs, you can find the most appropriate vintage or contemporary lorena sarbu for your needs in our varied inventory. If you’re looking for an option in beige and you’re unable to find the right fit, there are plenty of variations in gray and more.

How Much is a Lorena Sarbu?

Prices for a lorena sarbu can differ depending upon size, designer and other attributes — on 1stDibs, these accessories begin at $491 and can go as high as $866, while, on average they fetch $743.

Finding the Right Evening-dresses for You

With entire museum exhibitions dedicated to examining fashion designers and their creations, we’re finally recognizing that costuming is art. Evening dresses over time have conveyed specific statements about social class, position and beliefs. Fashion is a powerful means of self-expression, and sophisticated vintage evening dresses and gowns by our favorite couturier play no small role in making us feel wonderful but, perhaps more importantly, making us feel like ourselves.

In the 16th century, dresses and gowns were so important that England's Queen Elizabeth I defined rules about what dresses women could wear — guidance included long skirts and fitted bodices. Forward-thinking designers have responded to this history.

Gabrielle “Coco” Chanel reimagined traditionally masculine garments for feminine shapes, and her elegant evening dresses and gowns promoted comfort and grace in women’s wear that had been dominated in the previous century by layers of fabric. Christian Dior's gowns celebrated luxury and femininity in the late 1940s — and gave to women the gift of glamour they’d lost in the miserable years of the war. French fashion designer Yves Saint Laurent introduced innovative and highly coveted dress designs in the 1960s while at the same time challenging sexist stereotypes about which members of society could wear tuxedos.

Works by unconventional British designer John Galliano — featured in houses like Givenchy and Dior — redefined limits that dressmakers faced in terms of material, construction and vision during the late 20th century. From his embroidered absinthe-green Oscars gown for actress Nicole Kidman to the iconic sleeveless Dior newspaper dress that Sex and the City’s Carrie Bradshaw made famous, Galliano’s intricate and multifaceted work is reliably collectible and newsworthy

Today’s designers target an increasingly broad audience with their boundary-crossing work, and their tendency to play off of each other’s ideas means that every walk down the runway is also a walk through an entire history of fashion design and dress craftsmanship.

Whether you gravitate toward backless maxi dresses or silk charmeuse gowns by Alexander McQueen or embellished, ruffled floral-print designs by Chloe or Versace, there is an extraordinary collection of vintage and designer evening dresses and gowns waiting for you on 1stDibs.

Read More

Barbra Streisand Channeled Klimt’s ‘Woman in Gold’ in This Shimmering Dress

Costumer to the stars Ray Aghayan brought the famed painting to life with his spectacular design.

A Chanel Obsessive’s Cache Extends Well beyond Her Walk-In Closet

From handbags and heels to jackets and jewels, Sharon Coplan Hurowitz has a deep admiration for (and collection of) all things Chanel.

Behind the 1970s and ’80s Glam of ‘Halston’ with the Hit Show’s Costume Designer

Jeriana San Juan explains how she undertook the intimidating project of designing costumes for the new Netflix series about the New York fashion legend. (Hint: She found vintage Halston on 1stDibs!)

A Short History of Capri Pants, on the 100th Birthday of Their Inventor

Once considered a controversial item of clothing, fashion designer Sonja de Lennart's creation is now a bona fide classic.

How the Chanel Jacket Forever Changed What Women Wear

The classic tweed garment has been a wardrobe staple of chic women around the world since the 1950s.

A Pair of Shoes — Heels or Flats — Can Tell an Impactful Story

Amanda Benchley and Bridget Moynahan teamed up to explore the relationship between powerful women and their most significant footwear.

You Saw It at the Met Ball. Here’s What Camp Fashion Is Really About

This year's Costume Institute exhibition is all about embracing the eccentric.

The V&A Takes a Fresh Look at the New Look’s Pioneering Progenitor, Christian Dior

Ballrooms, Bar Suits and British royals — in a sweeping exhibition, the London museum looks back on 70 years of the French fashion house, as well as its illustrious founder and his fondness for the United Kingdom.