Clarisse 810413 Sequin Mermaid Gown with Illusion Sweetheart & Open Back

The neckline is a deep sweetheart with a sheer illusion V-plunge insert — a panel of mesh that fills in the centre of the sweetheart, giving the neckline its distinctive plunging look while keeping the shape structured. Thin spaghetti straps sit at the shoulders. The back is completely open down to the waist, with just the straps crossing at the top.

Fit & Silhouette

Clarisse 810413 follows a true mermaid cut. The stretch jersey base beneath the sequin layer holds the dress close through the bust, waist, and hips. There is no give from the sequin itself, so the jersey does the work — it moves with you rather than against you. The flare begins at about the knee and opens into a modest train at the hem.

This dress is cut to fit close. If you are between sizes, size up. The fitted nature of the mermaid silhouette means there is very little room for alterations at the waist or hip without disturbing the sequin surface, so getting the right size from the start matters. Clarisse sizing runs consistent with standard US sizing — check the brand's size chart and measure your bust, waist, and hips before ordering.

Fabric & Detail

The base of Clarisse 810413 is a stretch jersey knit. The entire outer surface — bodice and skirt, top to bottom — is covered in sequin. There is no plain fabric showing anywhere on the exterior. This is what makes it qualify as a fully sequined gown: the coverage is complete, not just at the top or the skirt alone.

The illusion panel at the sweetheart neckline is a sheer mesh insert that creates the V-plunge effect at the centre front. The sweep train is a natural extension of the mermaid flare — it is not a detachable train or a separate overlay, just the gown continuing past the floor at the back hem.

Key Features

• Fully sequined exterior — 100% sequin coverage from neckline to train
• Stretch jersey base for comfort and movement
• Deep sweetheart neckline with illusion V-plunge mesh insert
• Completely open back with spaghetti straps
• Mermaid silhouette — tight through the hips, flaring at the knee
• Sweep train
• Available in Black and Periwinkle
• Designed and produced by Clarisse

Style & Occasion

Clarisse 810413 is built for high-impact moments: prom, formal dances, pageants, and evening events where the goal is to stand out. The fully sequined surface catches every light in the room, and the mermaid cut paired with the open back makes this a statement gown from every angle.

Black is the sharper, higher-contrast choice — it photographs dramatically and pairs with silver or gold accessories equally well. Periwinkle is the softer option with a cool lavender-blue tone that reads distinctly in person and picks up the sequin shimmer in a lighter, more colourful way. Both are strong prom colors.

For shoes, a strappy heel or a pointed-toe stiletto works best with the mermaid hem — anything too chunky will compete with the train. Keep jewelry minimal and let the sequin do the work: a simple ear cuff or drop earring is enough. A sleek updo or high ponytail shows off the open back.

This gown is available through Marlas Fashions, an authorized Clarisse retailer with over 40 years in the business. Every dress is inspected before it ships. If you need help deciding between Black and Periwinkle or want to confirm availability in your size, reach out — our team knows this gown and can help you choose.