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Clarisse 810413 Sequin Mermaid Gown
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Standard: arrives in 7 to 12 days
Express: arrives in 4 to 6 days
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Keeps necklines in place all night
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Description
About the Dress: Clarisse 810413
Clarisse 810413 is a fully sequined long mermaid gown that covers every inch of fabric from neckline to train in high-impact sequin. It comes in Black and Periwinkle and is built for anyone who wants to walk into prom, a formal event, or a pageant and own the room. The silhouette is body-hugging from the bust through the hips, then flares dramatically at the knee into a sweep train that trails behind you.
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.
Size & fit
- Fitted (mermaid). Bust, waist and hips all matter. Go by your largest measurement.
- Length: Long
- Neckline: V-Neck
- Details: Open Back, Train
- Between sizes? Text a stylist and we'll help you choose.
Shipping
- Arrives in 7–12 business days, or 4–6 with Express (+$35).
- Free shipping over $250 to Canada and the USA.
- Text updates as your order ships.
Full shipping details
Your Dress — Delivered in Days, Not Weeks.
We know timing matters — especially for prom, weddings, quinceañeras, and special events.
- Receive your dress within 7–12 business days, depending on designer availability.
- You’ll receive text updates as your order moves from processing to shipping.
- Once shipped, delivery typically takes 2–5 business days within North America.
Need it sooner?
We offer rush options where you can receive your dress within 4–6 business days. Text us at +1 416-536-2956 before ordering and we’ll confirm the fastest possible delivery date.
We are an authorized retailer of top designers, which means your dress ships brand new and directly from the designer or our showroom — never used, never rented.
Have an event date? Add it in your order notes so we can prioritize accordingly.
We proudly ship across Canada, the United States, and Internationally, with in-store pickup available at our Toronto showroom.
Returns
- Tell us within 5 days of delivery.
- 100% store credit, a one-time exchange, or a refund (30% restocking fee).
- Online purchases only; in-store purchases are final.
Full return policy
WE ACCEPT RETURNS!
For Online Purchases Only. All in-store purchases are FINAL.
We hope you LOVE your dress — but if you're not completely satisfied with your online purchase, you may request:
- 100% Store Credit (no expiration).
- A one-time exchange, OR
- A return with a 30% restocking fee, OR
You must notify us of a return within 5 days of delivery (including weekends and holidays — we are open 7 days a week).
We have no control and accept no responsibility for the sizing selected. Please carefully review the size chart before ordering. If you need assistance with sizing, we’re happy to help — text us at +1 416-536-2956.
ORDER CHANGES & CANCELLATIONS
Once your order is placed, you have 5 hours to request a change to the color, size, or style.
If an item becomes unavailable, we will offer alternatives or provide the option of a full refund for that item.
Please see our Returns & Exchanges page for full details.
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Free standard shipping on orders over $250 to the US and Canada. Under $250, shipping is shown at checkout.
Shipping details -
US orders ship from our warehouses in Los Angeles, Chicago and New York. Canadian orders ship from Toronto. No duties to pay at the door.
Shipping details -
Exchange, store credit or refund. Dresses tagged Final sale can't be returned.
Return policy -
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Ask a stylist
Why buy from Marlas
Authorized retailerEvery dress authentic, direct from the designer
Toronto flagship10,000 sq ft showroom, 100,000+ clients styled
15,700+ online ordersShipped to 59 countries
Real stylistsText, WhatsApp or chat. Replies in about 10 min
Choose options
Clarisse 810413 Sequin Mermaid Gown with Illusion Sweetheart & Open Back
Sale price $455 CAD
Need help?
Frequently Asked Questions
This is the most common concern with a fully sequined mermaid gown, and it is a fair one. The short answer is yes — you can dance in Clarisse 810413 — but there are a few things to know going in so you are not caught off guard.
The gown is built on a stretch jersey base, which is the same fabric used in athletic and dancewear. Jersey has real give in all directions, and that elasticity carries through to the fit of the dress even though the outer surface is covered in sequin. The sequin layer sits on top of the jersey and does not lock the fabric in place — the sequin flexes with the stretch of the base. This is different from a rigid structured gown where the fabric itself resists movement.
That said, a mermaid silhouette is genuinely fitted from the bust through the hips down to the knee. Your stride will be somewhat narrowed compared to a ballgown or an A-line, especially on the dance floor where you might want to take big steps or move side to side quickly. Most people who wear mermaid gowns adapt their movement naturally within the first hour — shorter steps, rotating at the hips rather than swinging the legs wide. The flare at the hem begins at approximately the knee, which gives you more freedom from the knee down than a pencil silhouette would.
The sweep train is worth thinking about. On a dance floor it will trail behind you, so you want to be aware of it if you are moving backward or if someone is dancing close behind you. Some people choose to loop the train over a wrist for fast songs and let it fall naturally for slower ones. The train is not detachable on this style, but it is lightweight enough that carrying it briefly is easy.
For the most comfortable experience, make sure you are in the correct size — not sized down to get a tighter fit. When the dress fits as intended, the jersey base has room to stretch and return without pulling. If you size down aggressively in a sequin mermaid gown, the stretch is already at its limit before you start dancing and you will feel it within an hour.
Finally, the open back means there is no restrictive panel across your back, which actually helps with breathing and movement throughout a long night. Overall, Clarisse 810413 is one of the more movement-friendly fully sequined gowns in its category because of that jersey construction — it just requires a confident stride rather than wide, swinging steps.
Both colorways look different in photographs than they do in a room, and that gap is worth understanding before you choose.
Black sequin gowns photograph as very deep, very high-contrast, and occasionally a little flat in casual lighting — phone cameras tend to underexpose sequin black, making it look matte. In person, black sequin is the opposite of flat: it picks up every light source in the room and throws it back in sharp, bright flashes. Under prom venue lighting — stage wash, spotlights, colored gels — black sequin is extremely dramatic. It also photographs beautifully in professional or well-lit settings. If your venue is darker or you know there will be strong directional lighting, Black is a showstopper choice.
Periwinkle sequin reads as a cool lavender-blue, lighter than royal blue and warmer than a true ice blue. In photos, especially outdoor or daylight shots, it can look almost silvery or softer than expected. In person under venue lighting, periwinkle sequin picks up a shimmer with a distinctly blue-purple tone that is quite different from how it renders on a screen. If your prom has warm-toned lighting (amber, gold, or pink wash), Periwinkle will glow rather than compete. If the venue uses cooler blue-white lighting, it will appear closer to the photographs.
For skin tone guidance: Black works across all skin tones and is a safe, universally flattering choice for sequin. Periwinkle tends to complement cool and neutral undertones especially well, and it is a strong choice if you want to stand out from the large number of black prom gowns in any given year.
Group coordination is another factor. If you are coordinating with a date in a navy or black suit, Black sequin is a natural pair. Periwinkle works well with charcoal, navy, or even a light grey suit. If you are matching with a court or damas group, Periwinkle is easier to build a color story around because it pairs with both warm and cool accent colors.
If you are genuinely torn, our team at Marlas Fashions sees both colors in person and can tell you exactly how they look against specific skin tones or in relation to a date's outfit. Reach out before you order.
Sequin gowns need a little more attention than a plain fabric dress, but the care is straightforward once you know what to avoid.
For cleaning after prom, the safest route is professional dry cleaning — specifically a cleaner who has experience with sequin or beaded gowns. Mention the fully sequined surface and the stretch jersey base when you drop it off. Avoid standard dry cleaners who may not have experience with sequin, as heat or harsh solvents can dull or warp the sequin facing. Do not machine wash or hand wash a fully sequined gown — the agitation loosens sequin threads and the jersey can stretch unevenly when wet.
For spot cleaning small areas (a makeup transfer on the sweetheart, for example), use a barely damp white cloth and dab gently. Do not rub, as rubbing will snag or flip sequin tiles.
For storage, hang the gown on a padded hanger rather than a plastic clip hanger — the weight of the sequin is enough to stress thin straps if left on a narrow hanger long-term. A breathable garment bag (fabric, not plastic) protects the surface from dust without trapping moisture. Avoid folding the gown, as fold lines in sequin are very difficult to release without steaming.
For travel, the best approach is to carry the gown in a garment bag and hang it as soon as you arrive at your destination.
The mermaid silhouette and sweep train narrow your shoe options in a practical way: chunky block heels and platform sandals compete with the train and can catch the hem. The best choices are a strappy stiletto, a pointed-toe heeled mule, or a simple ankle-strap heel. Height helps with the sweep train — a shorter heel can cause the back of the hem to drag more heavily. Nude or metallic (gold, silver, or rose gold) are safe picks for both Black and Periwinkle.
For jewelry, the sequin surface is already doing the heavy lifting visually. Less is genuinely more with a fully sequined gown. For the neckline, the illusion V-plunge at the sweetheart means a pendant necklace can get lost or tangled — drop earrings or an ear cuff draw attention to the face without competing with the neckline detail. A simple metallic cuff bracelet or a delicate bracelet stack works well at the wrist.
For hair, the open back is the focal point from behind — a sleek updo or high ponytail shows it off fully and keeps the clean lines of the back visible. Loose waves pulled to one side are also effective if you want a softer look.
For a small evening bag: a metallic clutch in gold or silver pairs with both colorways. Avoid oversized bags — the fitted silhouette reads best when accessories stay proportional and streamlined.
A fully sequined mermaid gown is one of the more body-specific silhouettes in formalwear — it is not universally flattering in the same way an A-line or a fit-and-flare can be, so it is worth thinking about before you commit.
Mermaid silhouettes work best on hourglass or pear body types where the hip and bust measurements are similar or where the hips are slightly wider. The tight fit through the hips and thighs is the defining feature of this cut — if you are comfortable with fitted clothing through that area, this gown will work as intended. The flare at the knee creates visual drama below and draws the eye down the length of the body.
For straighter or more athletic body types, a fully sequined mermaid can still work well — the sequin surface creates the illusion of curves and the fitted construction adds shape. Sizing correctly is especially important here: a mermaid that is too big through the hips will look boxy rather than sleek.
The sweep train adds visual length, which is flattering for petite frames and works on tall frames equally well. The spaghetti straps and open back keep the upper body clean and uncluttered, which avoids shortening the torso visually.
For anyone self-conscious about the hip or thigh area, the mermaid cut is less forgiving than an A-line. It is built to show the body underneath.
Clarisse 810413 ships from Marlas Fashions' Los Angeles or New York warehouse, with Canadian orders fulfilled from our Toronto location. Standard delivery is 7 to 12 business days from the time your order is confirmed. Rush shipping is available if you have a tighter deadline — contact us before placing your order so we can confirm availability and the fastest shipping option for your location.
US and Canadian customers pay no duties on their orders. International shipping is available to most destinations worldwide, and every order ships with tracking so you can follow your package from warehouse to door.
If your prom date is within six weeks, we strongly recommend reaching out to confirm that your size and color are in stock and to discuss timing before ordering. Sequin gowns in specific colors and sizes can move quickly during prom season. Our team can confirm what is available and get your order prioritized if needed.
For time-sensitive orders, you can reach our concierge team by text at +1 416-536-2956 or by WhatsApp at +1 213-868-3131. We will give you an honest answer about whether we can get the dress to you in time.
Marlas Fashions accepts returns on Clarisse 810413. You have three options: store credit (which never expires), an exchange for a different size or style, or a refund minus a 30% restocking fee. The restocking fee covers the inspection and reprocessing of returned formalwear, which goes through a full quality check before it can be listed again.
For the try-it-on-at-home approach: yes, you can order, try the dress on at home, and return it if the fit or color is not right. The key requirement is that the dress must be returned in its original condition — unworn to an event, tags on, no makeup transfer, no deodorant marks, no alterations. Sequin gowns show contact marks easily, so take care when trying it on over a slip or with a cloth barrier.
If you are between sizes or unsure whether the mermaid silhouette will work for your measurements, ordering your most likely size to try at home is a reasonable approach. We can walk you through the size chart if you contact us before ordering.
For exchanges — if you want to swap Black for Periwinkle, or go up a size — the exchange process is straightforward. Contact us as soon as you know you want a different option so we can hold the alternative size or color while your return is in transit.
Full return policy details are available on the Marlas Fashions website.
The combination of details on Clarisse 810413 is harder to find than it might look at first glance. Most sequin mermaid gowns at this price point use a standard sweetheart or V-neckline. The 810413 pairs the sweetheart shape with an illusion V-plunge mesh insert at the centre, which gives the neckline a more complex, structured look than a plain sweetheart alone. The sheer mesh fills in the deep centre plunge and creates a slightly unexpected detail that is visible up close but reads as a clean neckline from a distance.
The open back is full — the entire back is bare from the straps to the waist — which is more dramatic than the partial cutout or keyhole back openings common on other sequin gowns. Combined with the open back, the spaghetti straps keep the upper body minimal and uncluttered.
The sequin coverage is complete from the sweetheart to the sweep train with no plain panels or contrast blocking, which keeps the visual impact consistent from every angle. Many gowns described as sequin actually use sequin only on the bodice or apply it over a visible plain skirt — here the coverage is total.
The stretch jersey base is a construction choice that affects wearability. Rigid net or boned foundations under sequin are stiffer and can feel constraining over a long evening. The jersey base keeps the gown moving with you. That is not visible from the outside, but you feel the difference by the end of the night.