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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 price$ 8,158 Regular price$ 9,651
La Femme - 28863 Sparkling Sequins V Neck Dress In SilverLa Femme - 28863 Sparkling Sequins V Neck Dress In Silver
La Femme 28863 Sale price$ 8,158
May Queen RQ7738May Queen RQ7738
May Queen RQ7738 Sale price$ 5,999
La Femme - 29028 V Neck Fitted Trumpet Dress In PurpleLa Femme - 29028 V Neck Fitted Trumpet Dress In Purple
La Femme 29028 Sale price$ 6,519 Regular price$ 7,985
Ladivine CB046 Smoky BlueLadivine CB046 Rose Gold
Ladivine CB046 Sale price$ 5,852 Regular price$ 6,639
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 $ 2,053 Regular price$ 3,306
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 price$ 7,745 Regular price$ 9,651
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 price$ 5,546
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 price$ 8,158
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 price$ 6,292
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 price$ 6,519 Regular price$ 7,985
La Femme - 28948 Lace Square Neck Trumpet Dress In BlueLa Femme - 28948 Lace Square Neck Trumpet Dress In Purple
La Femme 28948 Sale price$ 7,412 Regular price$ 8,892
Ladivine CD0154 Smoky Blue videowise-widget-6675879ca76a3d00290aacea-7492555538625
Ladivine CD0154 Sale price$ 4,053
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 price$ 7,412 Regular price$ 8,892
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 price$ 8,158
La Femme - 28798 Sweetheart Rhinestone Lace Mermaid Dress In Champagne & GoldLa Femme - 28798 Sweetheart Rhinestone Lace Mermaid Dress In Blue
La Femme 28798 Sale price$ 7,412 Regular price$ 8,892
Mac Duggal - 79230M Embroidered Illusion Neck Mermaid Gown In BlackMac Duggal - 79230M Embroidered Illusion Neck Mermaid Gown In Black
Mac Duggal 79230M Sale price$ 15,423
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 price$ 4,519 Regular price$ 5,599
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 price$ 9,265 Regular price$ 10,691
La Femme - 27837 Sequined Lace A-Line Gown In BlueLa Femme - 27837 Sequined Lace A-Line Gown In Blue
La Femme 27837 Sale price$ 9,265 Regular price$ 10,691
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 price$ 7,372
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 price$ 10,385 Regular price$ 12,197
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 price$ 7,039 Regular price$ 9,798
La Femme - 28056 V Neck Jersey Fitted Dress In BrownLa Femme - 28056 V Neck Jersey Fitted Dress In Blue
La Femme 28056 Sale price$ 7,412 Regular price$ 8,812
La Femme - 27951 Embroidered V Neck Fitted Dress In PinkLa Femme - 27951 Embroidered V Neck Fitted Dress In Blue
La Femme 27951 Sale price$ 11,131 Regular price$ 12,571
Ladivine CD210C Metallic BlueLadivine CD210C Metallic Blue
Ladivine CD210C Sale price$ 4,186
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 price$ 2,133 Regular price$ 4,106
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 $ 9,998 Regular price$ 12,691
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 price$ 8,092 Regular price$ 15,423
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 price$ 1,733 Regular price$ 3,333
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 price$ 2,000 Regular price$ 3,840
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 price$ 1,333 Regular price$ 1,947
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 price$ 2,387 Regular price$ 3,386
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 price$ 3,986
Mac Duggal 79291D-MFMac Duggal - 79291D Long Sleeve Beaded Plunging Lace Gown In Black
Mac Duggal 79291D-MF Sale price$ 15,157
Sold outLadivine CB046 - MFLadivine CB046 - MF
Ladivine CB046 - MF Sale price$ 2,653 Regular price$ 6,239
Sold outLadivine CD208 Gold-SilverLadivine CD208 Gold-Silver
Ladivine CD208 Sale price$ 2,773
Sold outMac Duggal 79222D - MFMac Duggal - 79222D Floral Embroidered Long Sleeve Trumpet Dress In Neutral and Multi-Color
Mac Duggal 79222D - MF Sale priceFrom $ 7,998 Regular price$ 16,490
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 price$ 7,998 Regular price$ 14,597
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 price$ 11,971 Regular price$ 28,313
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 price$ 2,053 Regular price$ 4,373
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 price$ 2,000 Regular price$ 3,840
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 price$ 1,533 Regular price$ 2,720

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!