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    Shop 2026 ANNAKOO Blue Off The Shoulder Ruffles Trumpet Mermaid Prom Dress Under 289
    Shop 2026 ANNAKOO Blue Off The Shoulder Ruffles Trumpet Mermaid Prom Dress Under 289
    Shop 2026 ANNAKOO Blue Off The Shoulder Ruffles Trumpet Mermaid Prom Dress Under 289
    Shop 2026 ANNAKOO Blue Off The Shoulder Ruffles Trumpet Mermaid Prom Dress Under 289
    Shop 2026 ANNAKOO Blue Off The Shoulder Ruffles Trumpet Mermaid Prom Dress Under 289
    Shop 2026 ANNAKOO Blue Off The Shoulder Ruffles Trumpet Mermaid Prom Dress Under 289
    Shop 2026 ANNAKOO Blue Off The Shoulder Ruffles Trumpet Mermaid Prom Dress Under 289

    Blue Off The Shoulder Ruffles Trumpet Mermaid Prom Dress

    $217.65

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    ANNAKOO · FORMAL COLLECTION

    Sapphire Motion

    A blue sequin mermaid prom dress featuring an off-the-shoulder neckline, sculpted trumpet lines, and expressive ruffle detailing.

     
    Blue off-the-shoulder sequin trumpet mermaid prom dress with ruffle embellishment

    THE DESIGN IMPRESSION

    Blue with a Bold, Modern Edge

    Blue brings a cool, polished presence to formalwear, while sequins add a reflective finish that catches the light as you move. This gown combines that luminous surface with a dramatic mermaid profile, creating a look that feels glamorous without relying on excessive accessories.

    The off-the-shoulder neckline frames the shoulders and collarbone. Below, the trumpet mermaid silhouette follows the body's outline before opening toward the floor, while ruffle embellishments add dimension and movement. The overall effect is elegant, expressive, and ready for a memorable evening.

    01 / THE NECKLINE

    An Elegant Shoulder Line

    An off-the-shoulder neckline creates an open, graceful frame for the upper body. A sleek bun, a low chignon, or softly swept hair can help highlight this feature. Crystal earrings or a silver bracelet complement the cool blue color, while a simple necklace—or no necklace at all—keeps the neckline from feeling crowded.

    ANNAKOO blue ruffle trumpet mermaid prom gown showing its sequin surface and floor-length silhouette

    A second view of the blue gown, highlighting the shimmering finish and dramatic mermaid outline.

    02 / THE SILHOUETTE

    A Sculpted Shape with Fluid Detail

    Trumpet mermaid gowns are defined by a close-fitting outline and a flare toward the lower skirt. This shape gives the dress its distinctive formal profile, while the ruffle embellishment introduces texture and a sense of motion. Sequins bring added visual depth, making the blue color stand out in evening lighting.

    Because the silhouette is fitted, comfort and movement are important when selecting a size. During your fitting, practice walking, sitting, and taking a few dance steps. The hem should also work with the shoes you intend to wear for the event.

    Complete the Sapphire Look

    Use accessories to complement the blue tone and sparkle without competing with the gown's ruffles.

    JEWELRY

    Crystal & Silver

    Silver-toned earrings, crystal studs, or a delicate bracelet complement the cool blue shade. Keep the jewelry balanced so the neckline and ruffles remain the main features.

    SHOES

    Cool Metallics

    Silver, nude, black, or a coordinating blue heel can complete the outfit. Prioritize comfort and check the dress length with your chosen shoes before the event.

    HAIR & MAKEUP

    Clean and Refined

    A low bun or swept-back hairstyle emphasizes the shoulder line. Neutral makeup, a soft smoky eye, or a rosy lip can add polish while keeping the overall look coordinated.

    THE DETAILS

    Product Specifications

    Color shown Blue
    Silhouette Trumpet mermaid
    Neckline Off the shoulder
    Fabric Sequin
    Embellishment Ruffles
    Sleeve length Sleeveless
    Hemline Floor-length
    Back closure Zipper-up
    Waist Natural waist

    Accessories shown in the photographs, such as wraps, jackets, gloves, veils, or handbags, are not included unless specifically stated in the product listing. Contact ANNAKOO to ask about ordering accessories separately.

    MADE TO ORDER

    Give Your Order Time to Shine

    Each gown is made to order. Allow enough time for tailoring, delivery, and any final fitting before your event. Accurate measurements and early planning can make the ordering process easier.

    TAILORING TIME

    12–15 Days

    Estimated production time listed on the product page.

    DELIVERY TIME

    2–6 Days

    Estimated delivery time after production.

    Custom-made sizing is available for an additional $15. The product page also lists an optional “Make Dress in 8 Days” service for an additional $30. Confirm the applicable options and delivery estimate at checkout, especially if your event date is approaching.

    Frequently Asked Questions

    Helpful answers for choosing a blue off-the-shoulder mermaid prom gown.

    1. What are the main features of this blue prom dress?

    The gown features a blue color, sequin fabric, an off-the-shoulder neckline, a trumpet mermaid silhouette, ruffle embellishment, and a floor-length hemline. These elements create a glamorous formal look with a fitted outline and decorative movement. It is a strong option for anyone seeking a statement-making prom dress.

    2. Is this dress suitable for prom and formal evenings?

    The product is listed for prom, and its long silhouette and sequin embellishment also make it worth considering for other formal celebrations where a dramatic gown is appropriate. Review the dress code for your event and leave sufficient time for production, shipping, and fitting.

    3. How should I choose a size for a fitted mermaid silhouette?

    Use the product's size guide and compare it with your current measurements instead of relying only on your usual clothing size. Pay particular attention to the measurements requested in the size chart, and consider your intended shoes when checking the length. If you are between sizes or uncertain about the fit, contact customer service before ordering.

    4. Can I order this dress with custom measurements?

    The listing offers a custom-made sizing option for an additional $15. Follow the measurement instructions carefully and check each number before submitting your order. Custom sizing can help personalize the fit, but it does not guarantee that no alterations will be needed after delivery.

    5. How long does tailoring and delivery take?

    The product page lists a tailoring time of 12–15 days and delivery time of 2–6 days. These are estimates rather than guaranteed arrival dates. An optional eight-day dress-making service is listed for an additional $30. Confirm the service details at checkout and allow extra time for potential shipping delays or alterations.

    6. Which accessories work best with a blue sequin gown?

    Silver, crystal, nude, black, and metallic accessories are all worth considering. Silver jewelry emphasizes the cool tone of the dress, while nude or metallic shoes can complement the long silhouette. Because sequins and ruffles already add visual detail, streamlined accessories often create the most balanced result.

    7. Are accessories shown in the photographs included?

    Accessories shown in the product photographs, such as wraps, jackets, gloves, veils, or handbags, are not included unless specifically stated in the listing. If you need a particular accessory, contact ANNAKOO to ask whether it can be ordered separately.

    8. Will the blue shade look exactly the same in person?

    The listing identifies the shown color as blue, but the shade may appear different depending on screen settings, lighting, and photography. Sequins can reflect light differently indoors and outdoors. Review all available product images and contact customer service if you need more information about the color before purchasing.

    9. Is a trumpet mermaid dress easy to walk and dance in?

    The fitted shape can limit stride length compared with a fuller A-line gown. During your fitting, try walking, sitting, and moving as you would during the event. Wear your planned shoes to check the hem and consult a tailor if the fit or length needs adjustment.

    10. How should I care for a sequin dress?

    Check the garment's care instructions before cleaning or storing it. Avoid rough rubbing, pulling at embellishments, or applying direct heat without appropriate care guidance. A garment bag and careful storage can help protect the decorative surface from snagging or pressure. For cleaning, consult a professional familiar with embellished formalwear.

    ANNAKOO · FORMAL COLLECTION

    Step into the Spotlight in Blue

    A luminous sequin finish, an elegant off-the-shoulder neckline, and a dramatic mermaid silhouette come together for a confident formal statement.

     
    How To Measure

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