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Long Formal Party Dresses & Formal Prom Gowns

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La Femme - 28875 Long Sequin-Ornate Sheath Dress In Champagne & GoldLa Femme - 28875 Long Sequin-Ornate Sheath Dress In Champagne & Gold
La Femme 28875 Sale priceCHF 360 Regular priceCHF 426
La Femme - 28863 Sparkling Sequins V Neck Dress In SilverLa Femme - 28863 Sparkling Sequins V Neck Dress In Silver
La Femme 28863 Sale priceCHF 360
May Queen RQ7738May Queen RQ7738
May Queen RQ7738 Sale priceCHF 265
La Femme - 29028 V Neck Fitted Trumpet Dress In PurpleLa Femme - 29028 V Neck Fitted Trumpet Dress In Purple
La Femme 29028 Sale priceCHF 288 Regular priceCHF 353
Ladivine CB046 Smoky BlueLadivine CB046 Rose Gold
Ladivine CB046 Sale priceCHF 259 Regular priceCHF 293
Mayqueen MQ1820 long hunter green sexy fitted prom dress w/open back & high slit. Full length dark green gown is perfect for enagagement/e-shoot dress, wedding reception dress, indowestern gown, formal evening party dress, prom. Plus sizes avail.jpgMayqueen MQ1820 long hunter green sexy fitted prom dress w/open back & high slit. Full length dark green gown is perfect for enagagement/e-shoot dress, wedding reception dress, indowestern gown, formal evening party dress, prom. Plus sizes avail-b.jpg
May Queen MQ1820 Sale priceFrom CHF 91 Regular priceCHF 146
La Femme - 28880 Sequined Deep V Neck Fitted Dress In BlackLa Femme - 28880 Sequined Deep V Neck Fitted Dress In Silver
La Femme 28880 Sale priceCHF 342 Regular priceCHF 426
La Femme - 29037 Strappy Sequin V Neck Sheath Dress In BlackLa Femme - 29037 Strappy Sequin V Neck Sheath Dress In Red
La Femme 29037 Sale priceCHF 245
La Femme - 28946 Sequined Plunging V Neck Fitted Dress In BlueLa Femme - 28946 Sequined Plunging V Neck Fitted Dress In Silver
La Femme 28946 Sale priceCHF 360
La Femme - 29005 V Neckline Form Fitting Jersey Long Formal Dress In RedLa Femme - 29005 V Neckline Form Fitting Jersey Long Formal Dress In Red
La Femme 29005 Sale priceCHF 278
La Femme - 28881 Long Sleeve Off Shoulder Jersey Dress In BurgundyLa Femme - 28881 Long Sleeve Off Shoulder Jersey Dress In Blue
La Femme 28881 Sale priceCHF 288 Regular priceCHF 353
La Femme - 28948 Lace Square Neck Trumpet Dress In BlueLa Femme - 28948 Lace Square Neck Trumpet Dress In Purple
La Femme 28948 Sale priceCHF 327 Regular priceCHF 393
Ladivine CD0154 Smoky Blue videowise-widget-6675879ca76a3d00290aacea-7492555538625
Ladivine CD0154 Sale priceCHF 179
La Femme - 28949 Sequin-Adorned Off Shoulder Long Dress In RedLa Femme - 28949 Sequin-Adorned Off Shoulder Long Dress In Blue
La Femme 28949 Sale priceCHF 327 Regular priceCHF 393
La Femme - 29013 Sleeveless V Neck Fringe Sequin Fitted Evening Gown In Silver & GrayLa Femme - 29013 Sleeveless V Neck Fringe Sequin Fitted Evening Gown In Silver & Gray
La Femme 29013 Sale priceCHF 360
La Femme - 28798 Sweetheart Rhinestone Lace Mermaid Dress In Champagne & GoldLa Femme - 28798 Sweetheart Rhinestone Lace Mermaid Dress In Blue
La Femme 28798 Sale priceCHF 327 Regular priceCHF 393
Mac Duggal - 79230M Embroidered Illusion Neck Mermaid Gown In BlackMac Duggal - 79230M Embroidered Illusion Neck Mermaid Gown In Black
Mac Duggal 79230M Sale priceCHF 681
Ladivine CD205 light blue v neck metallic flowy dress w/straps. Perfect light blue dress for prom, wedding reception or engagement dress, indowestern gown, sweet 16, formal party dress, gala. Plus sizes avail-bvideowise-widget-6675879ca76a3d00290aacea-7492555636929
Ladivine CD205 Sale priceCHF 200 Regular priceCHF 247
La Femme - 28105 Floral V Neck A-Line Long Dress In Silver and GrayLa Femme - 28105 Floral V Neck A-Line Long Dress In Silver and Gray
La Femme 28105 Sale priceCHF 409 Regular priceCHF 472
La Femme - 27837 Sequined Lace A-Line Gown In BlueLa Femme - 27837 Sequined Lace A-Line Gown In Blue
La Femme 27837 Sale priceCHF 409 Regular priceCHF 472
Mac Duggal - 48855I Sleeveless Fitted Bodice A-Line Dress In BlueMac Duggal - 48855I Sleeveless Fitted Bodice A-Line Dress In Blue
Mac Duggal 48855 Sale priceCHF 326
La Femme - 28053 V Neck Lace A-Line Gown In NeutralLa Femme - 28053 V Neck Lace A-Line Gown In Blue
La Femme 28053 Sale priceCHF 459 Regular priceCHF 539
La Femme - 27916 Scoop Neck Full Sequin Sheath Gown In RedLa Femme - 27916 Scoop Neck Full Sequin Sheath Gown In Red
La Femme 27916 Sale priceCHF 311 Regular priceCHF 433
La Femme - 28056 V Neck Jersey Fitted Dress In BrownLa Femme - 28056 V Neck Jersey Fitted Dress In Blue
La Femme 28056 Sale priceCHF 327 Regular priceCHF 389
La Femme - 27951 Embroidered V Neck Fitted Dress In PinkLa Femme - 27951 Embroidered V Neck Fitted Dress In Blue
La Femme 27951 Sale priceCHF 491 Regular priceCHF 555
Ladivine CD210C Metallic BlueLadivine CD210C Metallic Blue
Ladivine CD210C Sale priceCHF 185
Mayqueen RQ7852 long burgundy red sequin v neck evening gown w/open back & slit. Full length fitted gown is perfect for  enagagement/e-shoot dress, formal wedding guest, evening party dress, prom, engagement, wedding reception. Plus sizes avail.jpgMayqueen RQ7852 long champagne sequin v neck evening gown w/open back & slit. Full length fitted gown is perfect for  enagagement/e-shoot dress, formal wedding guest, evening party dress, prom, engagement, wedding reception. Plus sizes avail-b.jpg
May Queen RQ7852 Sale priceCHF 95 Regular priceCHF 182
Mac Duggal - 4316D Long Sleeve Fully Embellished Column Gown In BlackMac Duggal - 4316D Long Sleeve Fully Embellished Column Gown In Silver & Gray
Mac Duggal 4316D - MF Sale priceFrom CHF 442 Regular priceCHF 560
Mac Duggal Evening - 67493D Bell Sleeves Floral Beaded Gown inb PurpleMac Duggal Evening - 67493D Bell Sleeves Floral Beaded Gown inb Purple
Mac Duggal 67493-MF Sale priceCHF 357 Regular priceCHF 681
Mayqueen MQ 1740 long metallic gold halter evening fitted mermaid dress w/low back.Full length satin gown is perfect for enagagement/e-shoot dress, formal wedding guest, indowestern gown, evening party dress, prom, bridesmaid. Plus sizes avail.jpgMayqueen MQ 1740 long dusty blue halter evening fitted mermaid dress w/low back.Full length dusty blue satin gown is perfect for enagagement/e-shoot dress, formal wedding guest, indowestern gown, evening party dress,prom, bridesmaid.Plus sizes avail-b.jpg
May Queen MQ1740 Sale priceCHF 77 Regular priceCHF 147
Mayqueen MQ1768 long dusty blue fitted party dress with v neck, wide straps & high slit. This dusty blue dress is perfect for bridesmaids, simple wedding guest dress, formal evening party dress. Plus sizes available.jpg
May Queen MQ1768 Sale priceCHF 89 Regular priceCHF 170
Mayqueen MQ 1740 long metallic gold halter evening fitted mermaid dress w/low back.Full length satin gown is perfect for enagagement/e-shoot dress, formal wedding guest, indowestern gown, evening party dress, prom, bridesmaid. Plus sizes avail.jpgMayqueen MQ 1740 long navy blue halter evening fitted mermaid dress w/low back.Full length dark blue satin gown is perfect for enagagement/e-shoot dress, formal wedding guest, indowestern gown, evening party dress, prom, bridesmaid. Plus sizes avail.jpg
May Queen MQ1740 - MF Sale priceCHF 59 Regular priceCHF 86
May Queen - MQ1701 Embroidered V Neck A-Line Dress In BlackMay Queen - MQ1701 Embroidered V Neck A-Line Dress In Black
May Queen MQ1701 Sale priceCHF 106 Regular priceCHF 150
Mayqueen MQ1820 long yellow sexy fitted prom dress w/open back & high slit. Full length yellow gown is perfect for enagagement/e-shoot dress, wedding reception dress, indowestern gown, formal evening party dress, prom. Plus sizes avail.jpgMayqueen MQ1820 long red sexy fitted prom dress w/open back & high slit. Full length red gown is perfect for enagagement/e-shoot dress, wedding reception dress, indowestern gown, formal evening party dress, prom. Plus sizes avail.jpg
MF18290 - MF Sale priceCHF 176
Mac Duggal 79291D-MFMac Duggal - 79291D Long Sleeve Beaded Plunging Lace Gown In Black
Mac Duggal 79291D-MF Sale priceCHF 669
Sold outLadivine CB046 - MFLadivine CB046 - MF
Ladivine CB046 - MF Sale priceCHF 118 Regular priceCHF 276
Sold outLadivine CD208 Gold-SilverLadivine CD208 Gold-Silver
Ladivine CD208 Sale priceCHF 123
Sold outMac Duggal 79222D - MFMac Duggal - 79222D Floral Embroidered Long Sleeve Trumpet Dress In Neutral and Multi-Color
Mac Duggal 79222D - MF Sale priceFrom CHF 353 Regular priceCHF 728
Sold outMac Duggal - 4913D Bell Sleeve Linear Sequin A-Line Gown In PinkMac Duggal - 4913D Bell Sleeve Linear Sequin A-Line Gown In Pink
Mac Duggal 4913D - MF Sale priceCHF 353 Regular priceCHF 644
Sold outMac Duggal - 4715D Short Sleeve Bead Fringed Long Gown In Silver & GrayMac Duggal - 4715D Short Sleeve Bead Fringed Long Gown In Silver & Gray
Mac Duggal 4715D Sale priceCHF 529 Regular priceCHF 1,249
Mayqueen MQ1817 short silver grey v neck flowy grade 8 graduation dress w/beaded top & puffy skirt. Light gray party dress is perfect for prom, graduation, grade 8 grad, confirmation dress, bat mitzvah dress, damas. Plus sizes avail for grad dress.jpggrade 8 grad dresses, graduation dressesMayqueen MQ1817 short silver grey v neck flowy grade 8 graduation dress w/beaded top & puffy skirt. Light gray party dress is perfect for prom, graduation, grade 8 grad, confirmation dress, bat mitzvah dress, damas. Plus sizes avail for grad dress-b.jpggrade 8 grad dresses, graduation dresses
May Queen MQ1817 Sale priceCHF 91 Regular priceCHF 193
Mayqueen MQ1816 short silver gray v neck flowy grade 8 graduation dress w/beaded top & puffy skirt. Light grey party dress is perfect for prom, graduation, grade 8 grad, confirmation dress, bat mitzvah dress, damas. Plus sizes avail for grad dress.jpggrade 8 grad dresses, graduation dressesMayqueen MQ1816 short silver gray v neck flowy grade 8 graduation dress w/beaded top & puffy skirt. Light grey party dress is perfect for prom, graduation, grade 8 grad, confirmation dress, bat mitzvah dress, damas. Plus sizes avail for grad dress-b.jpggrade 8 grad dresses, graduation dresses
May Queen MQ1816 Sale priceCHF 89 Regular priceCHF 170
Mayqueen Mq1766 short burgundy red flowy off shoulder lace grade 8 graduation dress w/ satin skirt. Dark red party dress is perfect for prom, graduation, grade 8 grad, confirmation dress, bat mitzvah dress, damas. Plus sizes avail.jpggrade 8 grad dresses, graduation dressesgrade 8 grad dresses, graduation dresses
May Queen MQ1766 Sale priceCHF 68 Regular priceCHF 120

2025 Long Formal Party Dresses & Formal Prom Gowns
Check out our 2025 formal evening dress collection for your next prom, military ball, black tie wedding, or any other special occasion. Formal dresses are generally long and have elegant detailing such as sequin beading, embroidery, or flowy metallic. For an elegant and chic look, try a simple long, off shoulder dress with a flowy chiffon skirt. If you are looking for something sleek and sexy, try a fitted evening dress with a high slit and open back or a mermaid skirt with a plunging v neckline. If you need a sensational gown or a winter formal dress for your special occasion then browse through our collection and find your favorite dress from one of our designers like La Femme, Mac Duggal, JOVANI, Mayqueen, LaDivine and so many more! We also carry long sleeve elegant formal dresses for your next black tie event, gala, or social event. From a-line evening gowns, fit n flare, long sleeve and strapless ones, to mermaid and formal long dresses, and the classic black evening gowns, its all at MarlasFashions.com. Captivate the room in a stunning formal dress with a sweetheart neckline or off shoulder neckline in a chiffon or sexy bodycon, embroidered with sequins and jewels.

Tips on How to Find the Perfect Long Formal Dress
Here are a some tips on how to select a beautiful long formal for your next event.

Consider the Season & Venue - In the spring (outdoor settings and during daytime events): long party dresses in pastels and other bright hues look best. For evening events, celebrations in the winter, and parties at formal venues, bold colors or rich jewel tones are go-to shades for long formal dresses.

Get Inspired – Start getting ideas from Instagram and Pinterest or even check out what your favorite celebrities are wearing to their formal events this season. See flattering styles that match your personality? Then shop for formal evening dresses in similar designs to find the right one for you

Decide on Fabric and Color - Choose a formal dress in your favorite color or fabric or consider your skin tone. Then you can shop for formal evening gowns in your chosen shade or look for styles in your favorite textures. Go for a chiffon material if you like movement and a romantic look. Perhaps you like the way a long formal dress in jersey fabric hugs your curves. If you like a sparkly dress, go for a sequin dress.

Can Never go Wrong with a Black Formal Dress
Keep it Classic - When in doubt, a classic black formal dress is always in style.

Follow these tips and feel confident in your formal dress!