Login

Cart

Your cart is empty

Cobalt Blue Prom Dresses Australia | One Honey Boutique

Cobalt Blue Formal Dresses Australia — If you’re ready to make a bold, unforgettable entrance, our collection of cobalt blue formal gowns delivers all the drama and shine. At One Honey Boutique, we offer a premium selection of cobalt prom and formal dresses in sizes 2–26, available in luxe fabrics like satin, glitter knit, and tulle.

These electric blue gowns feature corset bodices, lace-up backs, high slits, and curve-enhancing mermaid silhouettes — perfect for Year 12 formals, school balls, and red carpet events.

Shop online with AfterPay, ZipPay, and LayBuy, or visit our Gold Coast showroom for a private fitting. Can’t visit? Use our Virtual Try-On Tool and get it shipped express Australia-wide.

Need more shades of blue?
Blue Formal Dresses
Royal Blue Gowns
Navy Blue Dresses

✔️ Sizes 2–26
✔️ Statement-making electric tones
✔️ AfterPay, ZipPay & LayBuy
✔️ Express delivery from Australia

🔥 TikTok Viral Dresses from $99 in-store

🏆 900+ 5-Star Google Reviews

💎 Registered Dress Guarantee With Every Purchase

📅 Appointments Filling Fast — Book Now for School Holidays

👗 Try-On in Our Gold Coast Showroom Petite, Standard & Curve Sizes

🚚 Express Delivery Available Australia-Wide

💃 School Formal Dresses Brisbane | TikTok Famous Gowns

🇦🇺 Proudly Australian Owned Since 2011

✨ Find The One With Help From Our Expert Stylists at One Honey

Sort by

305 products

Filters
USA SIZE 4 - 16ARABELLA V Front A-line shimmer glitter dress with satin slit, perfect for prom and formal events. Brisbane to Gold Coast, Australia.ARABELLA V glitter prom dress with deep V-neckline and wide waistband, sleek leg slit style. From Brisbane to Gold Coast, Australia.
ARABELLA V Front A Line Shimmer Glitter Prom & Formal Dress Sale price$759.95 AUD
Color
USA SIZE 2 - 16MYSTIQUE silver beaded strapless mermaid dress with sheer bodice, perfect for evening elegance. Brisbane to Gold Coast, Australia.MYSTIQUE silver mermaid dress with beaded bodice and sweetheart neckline, perfect for evening glamour. Brisbane to Gold Coast.
MYSTIQUE Couture Hand Beaded Embellished Bodice Strapless Mermaid Formal Dress Sale price$799.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 2 - 16Sold outELLIANA Trumpet Mermaid Feather Feature Prom & Formal Evening DressELLIANA Trumpet Mermaid Feather Feature Prom & Formal Evening Dress
ELLIANA Trumpet Mermaid Feather Feature Prom & Formal Evening Dress Sale priceFrom $959.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 2 - 16Sold outPRETORIA Beaded Couture Feather Mermaid Prom & Formal DressPRETORIA Beaded Couture Feather Mermaid Prom & Formal Dress
PRETORIA Beaded Couture Feather Mermaid Prom & Formal Dress Sale price$1,109.95 AUD
Color
ONLINE EXCLUSIVECURVE SIZEUSA SIZE 18 - 24Plus size Pretoria beaded mermaid prom dress with feathers, featuring curve-hugging design in vibrant blue.Plus size model in PRETORIA Curve Beaded Couture Feather Mermaid Prom Dress with bead embellishments and faux goose feathers, back view.
PRETORIA Curve Beaded Couture Feather Mermaid Prom & Formal Dress Sale price$1,209.95 AUD
Color
VISIT OUR GOLD COAST STORE TO TRY ONUSA SIZE XS - XLPRESLEY Beaded Bustier Satin Leg Slit Mermaid Prom & Formal DressPRESLEY Beaded Bustier Satin Leg Slit Mermaid Prom & Formal Dress
PRESLEY Beaded Bustier Satin Leg Slit Mermaid Prom & Formal Dress Sale priceFrom $659.95 AUD
Color
VISIT OUR GOLD COAST STORE TO TRY ONUSA SIZE XS - XLMILLICENT Corset Deep V Front Sequin & Glitter Leg Split Mermaid Prom DressMILLICENT Corset Deep V Front Sequin & Glitter Leg Split Mermaid Prom Dress
MILLICENT Corset Deep V Front Sequin & Glitter Leg Split Mermaid Prom Dress Sale priceFrom $979.95 AUD
Color
CURVE SIZEAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STOREALICE metallic two-piece set with V-neckline and full sleeves. Plus Size, Curve Size evening gown. Brisbane to Gold Coast, Australia.ALICE Metallic Jersey Plus Size two-piece set with open back and waist tie, elegant evening gown for Curve Size. Brisbane to Gold Coast.
Once Labeled Designer ALICE Metallic Jersey Curve & Plus Size Two Piece Set Sale price$799.95 AUD
Color
CURVE SIZESAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STOREAMBER Plus Size formal dress with ruched bodice and thigh-high split. Curve Size evening gown, Brisbane to Gold Coast.AMBER Metallic Jersey Formal Dress with Ruched Details, Plus Size Curve, Evening Gown, Brisbane to Gold Coast Australia
Once Labeled Designer AMBER Metallic Jersey Curve & Plus Size Formal Dress Sale price$899.95 AUD
Color
CURVE SIZEAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STOREASHLEY metallic jersey formal dress with wide V-neckline and ruched skirt, Plus Size, Curve Size, Brisbane to Gold Coast, Australia.ASHLEY metallic jersey curve plus size evening gown with wide V-neckline and ruched skirt, perfect for Brisbane to Gold Coast events.
Once Labeled Designer ASHLEY Metallic Jersey Curve & Plus Size Formal Dress Sale price$899.95 AUD
Color
CURVE SIZEAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STOREBELLE plus size formal dress with V-neck and full skirt, curve size elegance, perfect for special occasions. Brisbane to Gold Coast.BELLE Plus Size yellow formal dress with illusion V-neck and off-shoulder style, perfect for curve size from Brisbane to Gold Coast.
Once Labeled Designer BELLE Scuba Curve & Plus Size Formal Dress Sale price$899.95 AUD
Color
CURVE SIZEAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STORECHELSEA formal dress with plunging neckline and ruched skirt, Plus Size. Perfect for special occasions. Available Brisbane to Gold Coast, Australia.Alt Tag: Once Labeled CHELSEA plus size formal dress with long sleeves and illusion neckline. Perfect for special occasions. Brisbane to Gold Coast, Australia.
Once Labeled Designer CHELSEA Scuba Curve & Plus Size Formal Dress Sale price$849.95 AUD
Color
CURVE SIZEAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STOREGEMMA scuba dress with thigh-high slit, stunning V-neckline, plus size evening gown. Curve Size. Brisbane to Gold Coast, Australia.GEMMA red scuba dress with open criss-cross back straps and flowing skirt, perfect for formal occasions. Plus Size Curve. Brisbane to Gold Coast.
Once Labeled Designer GEMMA Scuba Dress Curve Formal Gown Sale price$849.95 AUD
Color
CURVE SIZEAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STOREAlt Tag: HAYLEY metallic jersey dress with chic tapered straps and thigh-high split, plus size evening gown. Brisbane to Gold Coast.Alt Tag: HAYLEY metallic jersey curve dress with tapered straps and thigh-high split, evening gown for plus size. Brisbane to Gold Coast.
Once Labeled Designer HAYLEY Metallic Jersey Curve & Plus Size Dress Sale price$899.95 AUD
Color
CURVE SIZEAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STOREHAYLEY black scuba school formal dress with thigh-high slit. Modern plus size gown with curved neckline, Brisbane to Gold Coast.HAYLEY school formal dress with curved neckline, structured bodice, plus size, curve size, from Brisbane to Gold Coast, Australia.
Once Labeled Designer Hayley Scuba Curve & Plus Size School Formal Dress Sale price$899.95 AUD
Color
CURVE SIZEAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STOREISSY Metallic Jersey Dress with cowl neckline, Curve Size school formal gown featuring a thigh-high slit. Plus Size. Brisbane to Gold Coast.ISSY Metallic Jersey Dress featuring a cowl neckline and a thigh-high slit, perfect for a school formal gown. Plus Size, Brisbane to Gold Coast.
Once Labeled Designer ISSY Metallic Jersey Dress Curve School Formal Gown Sale price$649.95 AUD
Color
CURVE SIZEAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STOREKAT Scuba Curve & Plus Size formal dress with adjustable lace-up back and thigh-high slit, perfect for events from Brisbane to Gold Coast.KAT Curve & Plus Size Formal Dress with lace-up back and thigh-high slit, ideal for every occasion. Available from Brisbane to Gold Coast.
Once Labeled Designer KAT Scuba Curve & Plus Size Formal Dress Sale price$799.95 AUD
Color
CURVE SIZEAUS SIZE 16 - 30CHOOSE YOUR COLOURTRY ON IN STORERYLEY Metallic Jersey curve size formal dress with deep V-neck and flared hem, perfect for special occasions. Plus Size, Brisbane to Gold Coast.RYLEY Metallic Jersey Dress with back crisscross straps, curve size formal attire. Perfect for special occasions. Brisbane to Gold Coast.
Once Labeled Designer RYLEY Metallic Jersey Curve & Plus Size Formal Dress Sale price$899.95 AUD
Color
USA SIZE 4 - 16BELLE elegant purple mermaid dress with hidden corset and tie shoulder straps, prom gown style. Brisbane to Gold Coast, Australia.BELLE Mermaid Bridesmaid Dress with hidden corset and tie shoulder straps, elegant side slit; perfect for prom. Brisbane to Gold Coast.
BELLE Hidden Corset Tie Shoulder Strap Mermaid Bridesmaid & Prom Formal Dress Sale price$659.95 AUD
Color
CURVE SIZEUSA SIZE 18 - 24AURA Curve Off Shoulder Silky A Line Bridesmaid Formal DressAURA Curve Off Shoulder Silky A Line Bridesmaid Formal Dress
AURA Curve Off Shoulder Silky A Line Bridesmaid Formal Dress Sale price$529.95 AUD
Color
CURVE SIZEUSA SIZE 18 - 24Plus size mermaid prom dress in blue satin with mirror tiles, worn by a model, highlighting curves and glamour with city backdrop.FEMME Curves NIA plus size emerald green mermaid dress with mirror tiles, showcasing a sexy satin and beaded sheer bodice design for prom.
FEMME Curves NIA Plus Size Mirror Tiles Mermaid Prom & Formal Dress Sale price$859.95 AUD
Color
CURVE SIZEUSA SIZE 18-24Plus size woman in green shimmer V-front A-line evening dress, city skyline backdrop.Plus size woman in a shimmering green A-line dress, featuring a deep V-back, looking out at the city skyline at night.
FEMME Curves ARABELLA Plus Size V Front A Line Shimmer Glitter Prom & Formal Dress Sale price$859.95 AUD
Color
USA SIZE 4 - 16KARI Sequin Mesh Trumpet Prom Dress with V-neckline, elegant blue gown. Brisbane to Gold Coast, Australia.Alt Tag: KARI glamorous sequin trumpet mermaid dress with thin straps, perfect for prom or formal evening in Brisbane to Gold Coast.
KARI Sequin Sheet Mesh Fit & Flare Trumpet Mermaid Prom & Formal Dress Sale price$769.95 AUD
Color
CURVE SIZEUSA SIZE 18 - 24FEMME-Curves-MALIA-Plus-Size-Couture-Formal-Dress-Blue-Satin-Silhouette-Prom-Eveningwear-One-Honey-AustraliaFEMME-Curves-MALIA-Plus-Size-Diamante-Bustier-Black-Prom-Formal-Dress-Couture-Eveningwear-Australia-One-Honey
FEMME Curves MALIA Plus Size Diamante Bustier Corset Prom & Formal Dress Sale price$869.95 AUD
Color
LIMITED EDITIONUSA SIZE 2 - 14DISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGSold outESTELLA Glitter Shimmer Corset Back Mermaid Prom Dress with v-neckline and thin straps, Brisbane to Gold Coast Australia.ESTELLA Glitter Shimmer corset back mermaid prom dress with lace-up detail. Perfect for elegance from Brisbane to Gold Coast.
ESTELLA Glitter Shimmer Trumpet Corset Back Mermaid Prom Dress Sale price$759.95 AUD
Color
USA SIZE 2 - 14VISIT OUR GOLD COAST STORE TO TRY ONVENUS Corset Bustier Satin Mermaid Prom Dress with boned bodice and high slit, Brisbane to Gold Coast, Australia.VENUS Corset Bustier Satin Mermaid Prom & Formal Dress in blue with thigh-high slit, evening gown. Brisbane to Gold Coast, Australia.
VENUS Corset Bustier Satin Mermaid Prom & Formal Dress Sale price$729.95 AUD
Color
USA SIZE 2 - 10Alt Tag: ELISSA Glitter Corset Top with Skirt, featuring sweetheart neckline and side slit, evening dress, Brisbane to Gold Coast, Australia.ELISSA sparkling glitter corset top with pleated skirt, evening gown look. Elegant design, perfect for events. Brisbane to Gold Coast
ELISSA Two Piece Glitter Shimmer Corset Top w Skirt Sale price$459.95 AUD
Color
USA SIZE 2 - 14FAOLA Neon Sequin Mermaid Corset Dress with floral print, deep v-neckline, prom gown. Brisbane to Gold Coast, Australia.FAOLA Neon Sequin Mermaid Dress with lace-up back, perfect prom gown for stunning entrance. Brisbane to Gold Coast, Australia.
FAOLA Neon Sequin Mermaid Corset Lace Up Prom & Formal Dress Sale price$989.95 AUD
Color
USA SIZE 2 - 14KINSLEY V-neck sequin corset mermaid prom gown with a thigh-high slit, elegant and glamorous. Perfect for Brisbane to Gold Coast.KINSLEY sequin lace corset prom gown with thigh slit, Brisbane to Gold Coast
KINSLEY Deep V Applique Bustier Corset Mermaid Prom & Formal Dress Sale price$659.95 AUD
Color
CURVE SIZEUSA SIZE 16 - 22FEMME-Curves-CALISTA-Plus-Size-Blue-V-Front-Sequin-Leg-Split-Prom-Formal-Dress-Couture-Eveningwear-AustraliaFEMME-Calista-Plus-Size-Curve-V-Front-Sequin-Leg-Split-Prom-Dress-Magenta-Silhouette-Couture-Eveningwear-Australia-One-Honey
FEMME Curves CALISTA Plus Size V Front Sequin Leg Split Prom & Formal Dress Sale price$895.95 AUD
Color
CURVE SIZEUSA SIZE 16 - 24FEMME-Curves-MADAM-Plus-Size-Strapless-Mermaid-Dress-Green-Couture-Eveningwear-Prom-Formal-One-Honey-AustraliaFEMME-Curves-MADAM-Plus-Size-Strapless-Mermaid-Prom-Couture-Dress-Green-Eveningwear-Australia-One-Honey
FEMME Curves MADAM Plus Size Lace & Tulle Strapless Mermaid Prom & Formal Dress Sale price$859.95 AUD
Color
USA SIZE 2 - 16Two women wearing elegant blue evening gowns from Honey Couture, showcasing Australian designer prom dresses with sequin details.Two women in elegant blue evening gowns from Honey Couture, featuring a strapless sequin design and tiered lace details, by Australian designer.
Honey Couture CASEY Royal Sequin Strapless Corset Bustier Mermaid Formal Dress Sale priceFrom $629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 2 - 18DISCONTINUED FINAL SIZES AVAILABLEHoney Couture OLGA Royal Blue Satin Strapless Gown with Diamanté Detail, Australian Designer Evening Gown, Prom Dress, Affordable FashionHoney Couture OLGA royal blue satin strapless mermaid gown, Australian designer prom dress with diamanté detail, affordable elegance.
Honey Couture OLGA Royal Blue Satin Diamanté Detail Strapless Mermaid Formal Dress Sale priceFrom $529.95 AUD
Color
USA SIZE 2 - 16VISIT OUR GOLD COAST STORE TO TRY ONTwo women wearing Honey Couture DASHA Royal Blue Sequin Corset Mermaid Formal Dresses with leg split, designed for prom and evening events.Two models in Honey Couture DASHA Royal Blue Sequin Corset Mermaid Formal Dresses, showcasing Australian designer prom evening gowns.
Honey Couture DASHA Royal Blue Sequin Corset Mermaid Formal Dress Sale priceFrom $659.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PS21208 Ocean Blue Strapless Sequin Mermaid Formal Gown with iridescent sequins. Evening gown Brisbane to Gold Coast.PS21208 strapless ocean blue sequin mermaid gown with iridescent shine, elegant formal dress. Brisbane to Gold Coast, Australia.
Portia & Scarlett PS21208 Ocean Blue Strapless Sequin Mermaid Formal Gown Sale priceFrom $629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT FUFU GOWN cobalt beaded formal gown with feather shoulder detail, perfect for special occasions, Brisbane to Gold Coast.
Portia & Scarlett FUFU Cobalt Feather Mesh Couture Beaded Formal Gown Sale priceFrom $1,399.95 AUD
Color
ONLINE EXCLUSIVEEURO SIZE S - XLMINNA Fashion VIVRE Blue mermaid dress with sequins and crystals, off-shoulder style, evening gown. Brisbane to Gold Coast.Alt Tag: MINNA Fashion VIVRE Blue Sequin Mermaid Dress with off-the-shoulder design and sweetheart neckline. Evening gown, Brisbane to Gold Coast.
MINNA Fashion VIVRE Blue Sequin and Crystal Off the Shoulder Mermaid Formal Dress Sale price$4,029.95 AUD
Color
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion VITTORIA Blue Silky Deep V Dress with corset back, mermaid silhouette. Perfect evening gown. Brisbane to Gold Coast.MINNA Fashion VITTORIA Blue silky deep V mermaid evening gown with corset back, Brisbane to Gold Coast, Australia.
MINNA Fashion VITTORIA Blue Silky Deep V Corset Back Mermaid Formal Dress Sale price$1,219.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 9%Honey Couture SHARYN Ocean Blue Silky Corset Bustier Strapless Mermaid Formal Dress (RED TAG FINAL SALE)Model wearing Honey Couture SHARYN Ocean Blue Silky Corset Bustier Mermaid Formal Dress, Australian Designer Prom Evening Gown.
Honey Couture SHARYN Ocean Blue Silky Corset Bustier Strapless Mermaid Formal Dress (RED TAG FINAL SALE) Sale price$519.95 AUD Regular price$569.95 AUD
Color
USA SIZE 2 - 14Sold outThree women modeling colorful formal dresses: yellow, pink, and blue sequined evening gowns from Honey Couture.Model wearing Honey Couture MERLIAH Ocean Blue Sequin Beaded Mermaid Formal Dress, perfect for prom, Australian designer elegance.
Honey Couture MERLIAH Ocean Blue Sequin Beaded Mermaid Formal Dress Sale priceFrom $549.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 000 - 22Royal Blue Sherri Hill 55230 strapless mermaid prom dress with diamante detail next to black sequin gown indoorsTwo women in black sequin and royal blue Sherri Hill prom gowns with leg slits, showcasing formal wear at an Australian stockist.
Sherri Hill 55230 Royal Blue Silky Strapless Diamante Detail Leg Split Mermaid Formal Dress Sale priceFrom $1,195.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 000 - 14Sold outSherri-Hill-55124-Royal-Blue-Rhinestone-Mermaid-Prom-Dress-Corset-Australian-Stockist-School-Formal-GownSherri-Hill-55124-royal-blue-corset-back-mermaid-prom-dress-sequin-gown-Australian-stockist
Sherri Hill 55124 Royal Blue Rhinestone Embellished Jersey Corset Back Mermaid Formal Dress Sale priceFrom $869.95 AUD
Color
USA SIZE XS - XLSold outWoman wearing Honey Couture LARA Electric Blue Sequin Mermaid Formal Dress, perfect for prom or evening event. Australian Designer Prom Dresses.Woman wearing Honey Couture LARA Electric Blue Sequin Mermaid Dress from Australian Designer, perfect for prom or evening events.
Honey Couture LARA Electric Blue Sequin Thick Strap Mermaid Formal Dress Sale price$429.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS23601 Cobalt Diamanté Glitter Corset Mermaid Gown with Thigh-High Split, Brisbane to Gold Coast, Australia
Portia & Scarlett PS23601 Cobalt Diamanté Glitter Corset Bustier Mermaid Formal Gown Sale priceFrom $809.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS23232 Cobalt glitter off-shoulder gown with feather details and leg split, formal dress Brisbane to Gold Coast.
Portia & Scarlett PS23232 Cobalt Glitter Off The Shoulder Feather Detail Mermaid Formal Gown Sale priceFrom $1,299.95 AUD
Color
ONLINE EXCLUSIVEPORTIA & SCARLETT PS23150 off the shoulder velvet bustier mini dress with diamanté detail, perfect for formal events, Brisbane to Gold Coast
Portia & Scarlett PS23150 Cobalt Velvet Off The Shoulder Bustier Mini Dress Sale priceFrom $1,129.95 AUD
Color
ONLINE EXCLUSIVEPS23147 cobalt glitter off the shoulder mini dress with feather detail, perfect for special occasions in Brisbane to Gold Coast, Australia.
Portia & Scarlett PS23147 Cobalt Glitter Off the Shoulder Feather Bodycon Mini Dress Sale priceFrom $819.95 AUD
Color
ONLINE EXCLUSIVEPS23146 Cobalt Glitter Mini Dress with Beaded Leg Split, Thick Straps, V Neckline, Bodycon Style. Perfect for Formal Events. Brisbane to Gold Coast.PS23146 Cobalt Glitter Beaded Leg Split Mini Dress with thick straps, perfect as an evening gown, Brisbane to Gold Coast.
Portia & Scarlett PS23146 Cobalt Glitter Beaded Leg Split Bodycon Mini Dress Sale priceFrom $749.95 AUD
Color

Need help?

Frequently Asked Questions

Cobalt Blue Formal Dresses Australia

Need help with your order or planning ahead for formal season? Browse our Help Centre for answers about sizing, shipping, returns, and our Dress Registration policy.

📅 New to formal shopping? Read our How to Order Your Formal Dress guide for timelines, made-to-order info, and tips to avoid last-minute stress.

💸 Shop Sale Gowns from $99

🏬 Visit our Gold Coast Showroom

📲 Try our Virtual Try-On App

Still unsure? Contact Us — our friendly team is here to help you shine ✨