TONY WARD Silver Metallic Lace Gown Size 4-6
By TONY WARD
Located in Los Angeles, CA
This is a gown by celebrated designer Tony Ward. The gown which is made of a silver metallic lace with three dimensional dangle lace and sequin details.
TONY WARD Silver Metallic Lace Gown Size 4-6
By TONY WARD
Located in Los Angeles, CA
This is a gown by celebrated designer Tony Ward. The gown which is made of a silver metallic lace with three dimensional dangle lace and sequin details.
ALEXANDRE VAUTHIER COUTURE Runway metallic silver sequin plunge neck gown dress
By Alexandre Vauthier
Located in Hong Kong, NT
ALEXANDRE VAUTHIER COUTURE SS2015 Runway metallic silver sequin plunge neck gown dress Reference: TGAS/F00890 Brand: Alexandre Vauthier Designer: Alexandre Vauthier Collection: Sprin...
$760Sale Price|20% Off
ZUHAIR MURAD, Silver Metallic Chevron Gown Braided Bodice Rhinestone Cross-Strap
By Zuhair Murad
Located in Kingston, NY
ZUHAIR MURAD, Silver Metallic Chevron Gown Braided Bodice Rhinestone Cross-Strap.
Vintage Black & Silver Metallic Draped Asymmetrical Gown Size 2
Located in Los Angeles, CA
This gown is composed of a black and silver metallic fabric with an asymmetrical design.
Beautiful Vintage Badgley Mischka Size 10 / 12 Silver Metallic Beaded Gown Dress
By BADGLEY MISHCKA, Badgley Mischka
Located in San Diego, CA
Beautiful vintage 90s BADGLEY MISCHKA Couture quality metallic silver gray strapless evening gown! Features a fitted boned lace bodice with silver sequins hand-sewn throughout.
1980's LEONARD of Paris metallic silver gold brocade strapless gown
By Leonard Fashion, Leonard
Located in San Fransisco, CA
Leonard of Paris strapless evening gown in metallic gold and silver woven fabric with pink, lilac, and peach accents throughout.
1990S White & Silver Metallic Silk Chantilly Lace Empire Waist Gown With Satin
Located in New York, NY
This gown retains no label, however the amount of hand-finishing points to Haute Couture or custom made quality, fully lined in silk. 1990S White & Silver Metallic Silk Chantilly Lac...
Bill Blass F/W1983 Black Silver Metallic Velvet 1980s Evening Gown Vintage Dress
By Bill Blass
Located in San Diego, CA
⸻ Styling Notes This F/W 1983 metallic velvet gown is incredibly versatile for evening: • Pair with strappy black or silver heels and a sleek clutch for classic black-tie styling
Beautiful 1970s Black and Metallic Silver Glitter Vintage 70s Maxi Dress / Gown
Located in San Diego, CA
Gorgeous early 1970s black and silver glitter maxi dress or gown! Features a fitted black silk velvet bodice, with a rayon crepe full skirt. Silver glitter throughout creates a wonde...
$680Sale Price|20% Off
1970 Metallic Gold and Silver Brocade Maxi Dress Caftan Gown Kaftan
Located in Moreno Valley, CA
Details Origin: Morocco Period: 1970s Material: Gold and silver metallic floral brocade Trim: Metallic passementerie Closures: 99 traditional hand-knotted akaad buttons Features: Pri...
Metallic Gold and Silver Brocade 1970s Maxi Dress Caftan, Evening Gown Kaftan
Located in Moreno Valley, CA
Vintage exotic 1970s silver metallic brocade caftan gown. The luminous gold metallic caftan maxi dress caftan is made in a subtle metallic floral patterned brocade with shades of gol...
Oscar De La Renta Silver Metallic Two Piece Halter Gown Ensemble Size 4 & 8
By Oscar De La Renta
Located in Los Angeles, CA
This stunning Oscar De La Renta evening ensemble is composed of a beautiful silver metallic fabric. The halter top has an over sized tie detail. The skirt features a slim cut which i...
1960s Pauline Trigère Metallic Knit Gown W/ Futuristic Rhinestone Shoulder Yoke
By Pauline Trigère
Located in Gresham, OR
A wonderful 1960s Pauline Trigère slate blue wool and silver metallic knit gown with long sleeves and incredible futuristic styled rhinestone embellished yoke at shoulders.
ALEXANDRE VAUTHIER SS2024 Runway metallic silver liquid metal drape dress
By Alexandre Vauthier
Located in Hong Kong, NT
ALEXANDRE VAUTHIER SS2024 Runway metallic silver liquid metal asymmetric drape dress Reference: TGAS/F00741 Brand: Alexandre Vauthier Designer: Alexandre Vauthier Collection: Spring ...
ALEXANDRE VAUTHIER metallic silver lurex knit ruched backless halter dress
By Alexandre Vauthier
Located in Hong Kong, NT
ALEXANDRE VAUTHIER metallic silver lurex knit side ruched backless crystal pave halter dress Reference: TGAS/F00727 Brand: Alexandre Vauthier Designer: Alexandre Vauthier Material: F...
NWT Versace Silver Metallic Mesh Cut Out Black High Slit Gown It size 42 US 8
By Versace
Located in Montgomery, TX
New Versace Silver Metallic Mesh Cut Out Black Gown Designer size - 42 ( US 8 ) Metal mesh, High front slit, Cut-out back.
Beautiful 1970s Silver Metallic Lurex Rhinestone Buttons Sleeveless Maxi Dress
Located in San Diego, CA
Beautiful vintage 70s silver metallic lurex sleeveless maxi dress / gown with rhinestone buttons!
Vivienne Westwood metallic silver figure hugging mini dress, fw 1992
By Vivienne Westwood
Located in London, GB
▪ Vivienne Westwood metallic silver lycra mini dress ▪ Figure hugging ▪ Scoop neckline ▪ Lace pattern ▪ Size Small ▪ Fall-Winter 1992
Epic Thierry Mugler FW1986 Silver Metallic Liquid Silky Goddess Dress Rare
By Thierry Mugler
Located in Berlin, BE
This Epic Goddess Dress is everything. Extremely rare Thierry Mugler creation, FW 1986 Collection. Liquid silky silver metallic dream in the most stunning fitted shape. Deep wavy V-...
$950Sale Price|20% Off
Lanvin Black and Silver Silk Gown- Circa 80's
By Lanvin Paris
Located in West Palm Beach, FL
Vintage Lanvin Black and Silver/Metallic Stripe Silk Gown. Circa 80's. This gown is in excellent pre-owned condition.
Alexander McQueen metallic silver silk lamé open-back evening dress, ss 1997
By Alexander McQueen
Located in London, GB
▪ Alexander McQueen metallic silver silk lamé evening dress ▪ V-neck ▪ Open back with a belted waist ▪ Accordion pleated panel starting at the hip and finishing into a train ▪ Conce...
$746Sale Price|25% Off
1990s Janine of London Lillie Rubin Silver Grey Metallic Crushed Velvet Dress
By Lillie Rubin, Janine of London
Located in San Diego, CA
Sexy 90s JANINE OF LONDON for LILLIE RUBIN silver gray crushed velvet metallic bodycon dress! Features the softest crushed velvet that stretches to fit. Has what first appears to be ...
Vintage Donald Brooks 1970s Black Silver Metallic Maxi Dress, XS Fit
By Donald Brooks
Located in Port Saint Lucie, FL
Authentic, preowned vintage Donald Brooks Boutique black and silver metallic Lurex maxi dress, circa early 1970s. A striking example of American designer eveningwear, this glamorous ...
$206Sale Price|20% Off
KAREN MILLEN Size 4 Silver Metallic Viscose Blend Strapless Above Knee Dress
By Karen Millen
Located in San Francisco, CA
KAREN MILLEN dress in a silver metallic viscose blend featuring a pleated style, strapless, front bow detail, a-line, and a back zipper closure. Excellent Pre-Owned Condition. Mark...
$140Sale Price|30% Off
TOGA ARCHIVES metallic silver lurex pleats layered hem ribbed dress FR36 S
Located in Hong Kong, NT
TOGA ARCHIVES metallic silver lurex pleats layered hem ribbed dress FR36 S Reference: BSHW/A00020 Brand: Toga Archives Material: Polyester, Cotton Color: Silver, Grey Pattern: Solid ...
BALMAIN metallic silver coated cream argyle knit mini dress FR34 XS
By Balmain
Located in Hong Kong, NT
BALMAIN metallic silver coated cream argyle knit mini dress FR34 XS Reference: YIKK/A00174 Brand: Balmain Designer: Olivier Rousteing Material: Viscose Color: Silver, Cream Pattern: ...
1930s Blue and Silver Metallic Crepe Bias Cut Dress
Located in Beverly Hills, CA
Beautiful 30s Bias Cut Blue crepe gown in silver thread. Metal size zipper. Dress comes with belt ( see belt condition) size 6-8 Medium Bust: 34 - 37” Waist: 34- 38” / 38”-40 Hip/ 5...
1970S OSCAR DE LA RENTA Emerald Green & Silver Silk Lurex Metallic Devoré Velve
By Oscar De La Renta
Located in New York, NY
1970S OSCAR DE LA RENTA Emerald Green & Silver Silk Lurex Metallic Devoré Velvet Gown With Crystal Straps Internal Bustier
1970S MOLLIE PARNIS Black Tulle Dress Covered With Metallic Embroidery Silver S
By Mollie Parnis
Located in New York, NY
1970S MOLLIE PARNIS Black Tulle Dress Covered With Metallic Embroidery Silver Studded Paillettes
NWT 1970s Halston MET Museum Gold Silver 70s Vintage Lurex Gown + Duster Sweater
By Halston, Roy Halston Frowick
Located in San Diego, CA
MET MUSEUM featured deadstock ( new with original store tags ) 1970s HALSTON metallic gold and silver lurex evening gown and duster cardigan jacket !
1990S KRIZIA Metallic Silver Polyester Chiffon Asymmetrically Draped & Bias Co
By Krizia
Located in New York, NY
1990S KRIZIA Metallic Silver Polyester Chiffon Asymmetrically Draped & Bias Cocktail Dress
$415Sale Price|40% Off
Vintage 1970s Women's Silver Blue Metallic Jewel Waist Maxi Dress
Located in West Palm Beach, FL
1970s silver metallic blue organza jewel waist maxi dress. Beautiful shade of Tiffany blue with silver metallic design maxi dress, scoop neck, long sleeve dress has band cuffs that c...
2000s Pure Silk Black Metallic Silver Bias cut Ruffled Evening Dress
Located in Sheffield, GB
An Exquisite 2000's Vintage Pure Silk Bias cut Evening Dress in black with Metallic silver hand-sequinned & seed beadwork. The dress features Spaghetti strap shoulders, Cut-out h...
Oscar de la Renta 2000s Size 4 Silver Metallic Abstract Belted Fit n Flare Dress
By Oscar De La Renta
Located in San Diego, CA
Beautiful early 2000s OSCAR DE LA RENTA silver metallic silk sleeveless fit n ‘ flare dress and matching belt ! Unique matte abstract prints throughout. Tailored bodice with a forgiv...
$312Sale Price|20% Off
BILL BLASS Size 2 Silver Black Silk Metallic Double Breasted Coat
By Bill Blass
Located in San Francisco, CA
BILL BLASS coat comes in a silver & black metallic silk featuring a notch lapel, slit pockets, and a double breasted closure. New with tags. Marked: 2 Measurements: Shoulder...
Chic 1960s Black and Silver Metallic Knit Vintage Striped 60s Shift Dress
Located in San Diego, CA
Chic mid 60s black and silver metallic knit shift dress ! Features flattering slimming black and metallic silver diagonal stripes. Silver neck and sleeve cuffs. Hidden metal zipper u...
Black cocktail dress in silk chiffon , sequins and metallic silver chain Chanel
By Chanel
Located in Saint-Ouen-Sur-Seine, FR
Black cocktail dress in silk chiffon ,sequins and metallic silver chain. Tiny "Double C" in metal attach to one chain in the front and on the zip as well. Zip and hook&eye in the mid...
Purple and Silver Metallic 1960s Vintage A - Line Incredible 60s Fringe Dress
Located in San Diego, CA
Cutest vintage 1960s purple and silver metallic fringed A - Line dress! Flattering pleats at each bust, with a tailored bodice and full A-Line skirt. Features a silver metallic lurex...
MARTIER RAYMOND Ivory Silk Dress with Silver Metallic Floral Applique Size M
By Martier Raymond
Located in Los Angeles, CA
This Martier Raymond dress is composed of an ivory hied silk and features silver floral metallic applique. There is a zipper closure and princess darts. In excellent vintage conditi...
1970s Morton Myles Vintage Metallic Silver + Purple Lurex Op Art Print Dress
By Morton Myles
Located in Sparks, NV
Incredible 1970s print! Vintage Morton Myles metallic dress with long sleeves and midi length. Partially lined with rear zip and hook closure and button closure at the wrists. The ma...
Chic 1960s Black and Silver Metallic Lace Rayon Crepe Vintage 60s Sheath Dress
Located in San Diego, CA
Chic 1960s black rayon crepe and silver metallic lace vintage sheath dress ! Features an empire style waist with bow at side left waist. Swag detail at center back. Full metal zipper...
Vintage Metallic Lurex Brocade Cocktail Dress Gold Silver Black 1970s Size 11
Located in Port Saint Lucie, FL
The design features a chic mandarin-style collar, sleeveless silhouette, and structured box pleats that create a flattering, sculpted shape. The richly textured metallic weave catche...
$716Sale Price|20% Off
Peter Som Resort 2009 Silver Gold Grey Size 4 6 One Shoulder Silk Metallic Dress
By Peter Som
Located in San Diego, CA
Beautiful PETER SOM Resort 2009 one shoulder silk dress ! Features a silver metallic underlay, with a gold and silver metallic overlay. Grey silk chiffon swag at the right shoulder. ...
Versace F/W 2009 Runway Embellished Cutout Belted Silk Evening Dress Gown
By Versace
Located in Englishtown, NJ
Versace F/W 2009 Runway Embellished Cutout Belted Silk Metallic Silver Evening Dress Gown IT 38 Look 40 from the Fall 2009 Collection.
1970s Blue & silver Metallic Knit Cage Sleeve V Bodice Maxi Dress Wenjilli 9/10
By Wenjilli
Located in West Palm Beach, FL
1970s dark blue & silver metallic knit, long, draped cage cuff, sleeves maxi dress. Ribbed turtle neck with a fitted bodice and an open work V design at the front. Wide ribbed waist...
60s Marsal Silver Metallic Matelasse Gown with Asian Inspired Floral Pattern
Located in Los Angeles, CA
Serious 1960s moment in silver metallic matelasse. Scoop neck, snug waist and full, gathered sleeves. Asian inspired large scale floral print. Fully lined.
1920's Black Chiffon Gown- Silver Beadwork/Metallic Embroidery
Located in Oradell, NJ
This is a breathtakingly beautiful 1920's Art Deco creation on black chiffon embellished with silver beadwork and fine metallic embroidery stitching throughout the design.
1930's Black & Silver Metallic Lace Gown with Velvet Details
Located in Oradell, NJ
This is an enchantingly beautiful 1930's vintage, black and silver metallic lace floor length gown with modified, elbow length, butterfly winged sleeves.
Oscar de La Renta 1960s Silver and Gold Metallic Gown
By Oscar De La Renta
Located in Los Angeles, CA
Silver and gold metallic lace. Strapless, with gold braid trim with matching, extra long wrap. Zips down front with snap. Fully lined with boned corset.
Oscar de la Renta Metallic Gold and Silver Silk Pleated Strapless Gown
By Oscar De La Renta
Located in Hong Kong, Hong Kong
An ancient Greek inspired goddess gown from late designer Oscar de la Renta 2012 S/S collection. Ruched and boned bodice with a gold and silver braid. Zip fastening at back. Fully l...
1980's Short Sleeve Metallic Lace Gown with Fringed Apron
Located in Oradell, NJ
This is a striking, 1980's vintage, silver metallic lace gown with short sleeves, shoulder pads, a modified V-neckline, and a fringed apron.
Unavailable
Size: FR 36 US 4
Dior Resort 2007 John Galliano Metallic Silver Strapless Drape Dress Runway US 4
By John Galliano, Christian Dior
Located in Toronto, ON
Pre-owned Christian Dior Resort 2007 grey dress featuring metallic fabric, piping detail, darting on chest, corset style top with padding, draped back, concealed rear zipper, hook an...
1960's Silver Metallic Cocktail Dress with Embroidered Waist
Located in London, GB
Cute 1960's cocktail mini dress in silver silk fabric, featuring an embroidered band around the waist. The shift sleeveless shape is typical of the era, making this dress an effortle...
Genny Silver Metallic Embellished Lace Party Dress with Jacket, 1990s
By Genny
Located in Los Angeles, CA
A gorgeous party dress from Genny, featuring dense paisley and floral motif beadwork with rhinestone details, and a silver metallic lace skirt. The silhouette is almost a modern nod ...
Michael Kors Collection Silver Metallic Brocade Crystal Jeweled Keyhole Dress
By Michael Kors
Located in Cloverdale, CA
Michael Kors Collection Silver Metallic Brocade Crystal Jeweled Keyhole Dress Size 6 Bust 34" Waist 28" Hips 38" Excellent condition
Just Cavalli Metallic Silver Lamé Jersey Metal Embellished Mini Dress S
By Just Cavalli
Located in Dubai, Al Qouz 2
This designer dress is a chic and stylish garment that exudes elegance and sophistication. With its sleek design, flattering silhouette, and high-quality craftsmanship, this dress is...
1962 Christian Dior Paris Ivory Silver Floral Silk Brocade Back-Bows Bridal Gown
By Christian Dior, Marc Bohan
Located in Beverly Hills, CA
An ultra chic and highly coveted Christian Dior custom demi couture museum-quality ivory and metallic silver floral motif silk brocade gown dating back to fall/winter 1962.
Bob Mackie 1980s Black Wool Crepe with Silver Metallic Lame Evening Dress Size 8
By Bob Mackie
Located in Atlanta, GA
Bob Mackie 1980s black wool crepe with silver metallic lame evening dress is a size 8. Ladies please grab your trusted friend, Mr. Tape Measure, so you can properly measure your bus...
1966 Pierre Cardin Paris Metallic Silver Beaded Sequin Space-Age Mod Mini Dress
By Pierre Cardin
Located in Beverly Hills, CA
A totally iconic and highly collectable Pierre Cardin metallic silver beaded and sequin mod mini dress dating back to his 1966 fall-winter collection. Cardin is known for his avant-g...
Versace Vintage 1990's Silver Metallic Chain Gown
By Versace
Located in London, GB
We are excited to present this vintage Versace 1990's Silver Metallic Chain Gown. Features silver chain cross back straps and waist belt, open cutout back, silver embroidered beads o...
30s Aubergine and Silver Metallic Mesh Lace Gown w/ Velvet
Located in Gresham, OR
French quality metallic lace / mesh textile, in a heavier-than-usual weight, makes this 1930s gown flown beautifully!
Late 1990s Yigal Azrouël Backless Silver Metallic Slinky Bodycon Gown
By Yigal Azrouël
Located in West Hollywood, CA
This backless silver gown by Yigal Azrouël, dating back to the late 1990s, epitomizes versatility. This chic gown fits the bill, whether for a formal occasion or a more casual event....
Sold
Size: Small - Medium
Gorgeous 1960s Silver & Gold Metallic Colorful Crystal Rhinestone Empire Gown
Located in San Diego, CA
Featuring a stunning vintage 1960s White, Silver and Gold silk threading throughout. Gorgeous multi-colored rhinestones around bust, and at cuffs. Wonderful full skirt. Great for any...
1970s Gucci Style Chiffon Gown with Metallic Silver Lace by Estevez
By Estevez
Located in New York, NY
1970s Gucci Style Chiffon Gown with Metallic Silver Lace by Estevez
HELEN ROSE Couture Silver Metallic Ball Gown with Embellished Bodice Size Small
By Helen Rose
Located in Los Angeles, CA
This Helen Rose ball gown is composed of a silver metallic silk and features a beaded upper bodice.
1970S Silver Metallic Lurex Knit Slinky Disco Gown With Attached Cape & Crystal
Located in New York, NY
1970S Silver Metallic Lurex Knit Slinky Disco Gown With Attached Cape & Crystal Belt
Sold
Size: EU 40 USA Small - Medium
1990s Vintage Gianni Versace Pre-Death Versus Silver Metallic Criss Cross Gown
By Gianni Versace
Located in San Diego, CA
Stunning vintage Gianni Versace 'Versus' gown! Beautiful black/gray/silver metallic stretch material, with striking criss-cross back straps.
Chanel 2001C Pale Green Silver Metallic Gown with Fish Net Bodice & Hem 40
By Chanel, Karl Lagerfeld for Chanel
Located in West Palm Beach, FL
Chanel 2001C pale mint green silver metallic evening gown with low back & fish tail hem.
1970s Bohemian Metallic Silver Caftan
Located in Scottsdale, AZ
This is absolutely the best vintage caftan! Made of a light weight sparkling silver lurex it features a vibrant tropical inspired print of red, green, blue and yellow. Fitted waist c...
1990s Dolce & Gabbana Silver Metallic Slip Dress
By Dolce & Gabbana
Located in Austin, TX
1990's Dolce & Gabbana Silver Chain Strap Slinky Slip Dress Condition: Excellent Size 38/40 bust: 29-40", Waist: 25.5-38", Hips: 34-47", Length: 38.5"
Vintage PACO RABANNE Silver Metallic Mesh Grid Long Dress
By Paco Rabanne
Located in Kingersheim, Alsace
Vintage PACO RABANNE Silver Metallic Mesh Grid Long Dress Measurements taken laid flat, please double bust and waist: Bust: 14 inches (35.56 cm) could accommodate bigger size as it ...
1970s Malcolm Starr silver metallic cocktail dress
By Malcolm Starr
Located in Beverly Hills, CA
70s Malcolm Starr silver metallic cocktail dress. Size: 6
Burberry Prorsum Silver Metallic Lace Dress- 42
By Burberry
Located in West Palm Beach, FL
Burberry Prorsum Silver metallic lace & multi-tone silver V-neck dress. Dress is in excellent condition and is size 42. Measurements: Bust- 34" Shoulder to shoulder- 15" Waist- 26"
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.
Costumer to the stars Ray Aghayan brought the famed painting to life with his spectacular design.
From handbags and heels to jackets and jewels, Sharon Coplan Hurowitz has a deep admiration for (and collection of) all things Chanel.
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!)
Once considered a controversial item of clothing, fashion designer Sonja de Lennart's creation is now a bona fide classic.
The classic tweed garment has been a wardrobe staple of chic women around the world since the 1950s.
Amanda Benchley and Bridget Moynahan teamed up to explore the relationship between powerful women and their most significant footwear.
This year's Costume Institute exhibition is all about embracing the eccentric.
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.