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    Shop 2026 ANNAKOO Royal Blue High Neck Sheer Lace Sequin Long Sleeve Prom Dress Under 249
    Shop 2026 ANNAKOO Royal Blue High Neck Sheer Lace Sequin Long Sleeve Prom Dress Under 249
    Shop 2026 ANNAKOO Royal Blue High Neck Sheer Lace Sequin Long Sleeve Prom Dress Under 249
    Shop 2026 ANNAKOO Royal Blue High Neck Sheer Lace Sequin Long Sleeve Prom Dress Under 249
    Shop 2026 ANNAKOO Royal Blue High Neck Sheer Lace Sequin Long Sleeve Prom Dress Under 249
    Shop 2026 ANNAKOO Royal Blue High Neck Sheer Lace Sequin Long Sleeve Prom Dress Under 249
    Shop 2026 ANNAKOO Royal Blue High Neck Sheer Lace Sequin Long Sleeve Prom Dress Under 249
    Shop 2026 ANNAKOO Royal Blue High Neck Sheer Lace Sequin Long Sleeve Prom Dress Under 249

    Royal Blue High Neck Sheer Lace Sequin Long Sleeve Prom Dress

    $485.48

    Choose Options

    THE EVENING EDIT · ANNAKOO

    A Royal Blue Moment

    High-neck elegance meets intricate lace and all-over sparkle in a floor-length prom gown with a sculpted mermaid shape.

    Royal blue high neck sheer lace sequin long sleeve mermaid prom dress by ANNAKOO

    Designed for a memorable entrance, this royal blue prom dress pairs a high neckline and long sleeves with delicate lace embellishment and shimmering sequins. Its fitted trumpet mermaid silhouette creates a graceful line to the floor, making it a distinctive choice for prom and formal evening occasions.

    HIGH NECK LONG SLEEVES LACE DETAIL SEQUIN FINISH

    01 / The Silhouette

    Sleek from bodice to hem

    The trumpet mermaid cut follows the body's natural shape before opening toward the hem. A natural waist and floor-length finish keep the overall look long, streamlined, and formal.

    Style note

    Choose heels that complement the gown's length and allow comfortable movement.

    02 / The Details

    Texture with a little shimmer

    Lace embellishment adds detail to the design, while sequins catch the light as you move. The high neckline and long sleeves balance the sparkling surface with a more covered formal profile.

    Style note

    Try simple earrings and a compact clutch to keep attention on the dress.

    Second view of ANNAKOO royal blue high neck lace sequin long sleeve formal prom gown

    A closer look at the gown's royal blue finish and formal silhouette.

    Product Details

    The Essentials

    A detailed formal gown for prom nights and special evening events.

    Color shown Blue / Royal Blue
    Silhouette Trumpet Mermaid
    Neckline High Neck
    Sleeves Long Sleeves
    Fabric / Detail Sequin Fabric, Lace Embellishment
    Hemline Floor Length
    Back Closure Zipper-Up
    Waist Natural Waist

    Made to Order

    Plan Ahead

    Tailoring

    12–15 days

    Delivery

    2–6 days

    Standard sizing and custom measurements are available. Custom-made sizing costs an additional $15. The product page also lists an optional 8-day production service for an additional $30. Production time and delivery time are separate estimates, so order well before your event.

    Before You Order

    Frequently Asked Questions

    Is this dress appropriate for a formal prom?

    Yes. The floor-length mermaid silhouette, sequin finish, and detailed lace make it suitable for prom and other dressy evening occasions.

    Does the gown have long sleeves and a high neckline?

    Yes. It features a high neckline and long sleeves, paired with lace embellishment and sequin fabric.

    Can I request custom measurements?

    Yes. Custom-made sizing is available for an additional $15. Use the store's measurement guide and submit accurate measurements when ordering.

    How early should I place my order?

    The listed tailoring time is 12–15 days, with an estimated 2–6 days for delivery. Leave extra time before your event in case you need alterations or shipping takes longer than expected.

    What does the 8-day production option mean?

    The listing offers an optional “Make Dress in 8 Days” service for an additional $30. This is a production option and should not be treated as the total delivery time.

    Are the accessories in the photos included?

    No, accessories such as gloves, wraps, jackets, veils, and handbags are not included unless specifically stated. Contact the store if you would like to inquire about purchasing accessories separately.

    How can I choose the right size?

    Compare your measurements with the store's size chart rather than choosing by your usual clothing size alone. The fitted mermaid shape makes accurate bust, waist, and hip measurements especially helpful.

    ANNAKOO · SPECIAL OCCASION

    Make the Night Yours

    A rich blue hue, intricate surface detail, and a graceful floor-length cut bring a distinctive finish to your formal look.

    How To Measure

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