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Portia and Scarlett XO323 Halter Sweetheart Fitted Corset Hot-Stone Gown
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Standard: arrives in 7 to 12 days
Express: arrives in 4 to 6 days
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Description
About the Dress: Portia and Scarlett XO323
The Portia and Scarlett XO323 is a long, fully crystal-covered formal gown built around a sleek fitted silhouette, a halter sweetheart neckline, and a completely open back. The dress is designed for maximum visual impact — the bodice, waist, and skirt are covered in hot-stone rhinestone crystals over a stretch jersey base, and the skirt cuts to a dramatic high front slit with a trailing hem at the back. The boning in the bodice is clearly visible and structural, holding the corset top firmly in place without a strap in sight until the halter tie at the nape of the neck.
Fit & Silhouette
XO323 fits close through the bust, waist, and hips all the way down. This is a true fitted silhouette — not a fitted, because of the high front slit — the skirt stays tight to the body rather than flaring at the knee. The boned corset bodice cinches the waist and supports the bust. The open back runs fully bare from the halter neckline down to the lower back. The high front slit gives you full stride and movement while keeping the overall line long and lean. A floor-length train extends at the back hem. Size down if you are between sizes — the structured bodice holds shape best when it fits snugly.
Fabric & Detail
The base of the XO323 is stretch jersey, which gives the skirt its smooth, luminous drape. That base is covered almost entirely in hot-stone rhinestone crystals — small, individually set stones that catch light from every angle. The back skirt panel (visible in the editorial in the hot pink colorway) shows the fabric is smooth and close-fitting even where the crystal coverage is lighter. The boning channels run vertically through the bodice and are visible at the front. The neckline is a sweetheart shape with a clear center dip between the cups, and the halter strap ties at the nape. The train sweeps the floor at the back.
Key Features
- Halter sweetheart neckline with visible sweetheart dip and halter tie
- Fully boned corset bodice with visible boning channels
- Hot-stone rhinestone crystal coverage over the full dress body
- Completely open back from halter tie to lower back
- High front slit for movement and stride
- Floor-length back train
- Stretch jersey base for smooth fit and drape
- Available in Black, Blush, Lt. Blue, and Champagne Beige
Style & Occasion
The Portia and Scarlett XO323 is built for prom, pageant competitions, and formal evening events where a fully-embellished fitted gown is the right call. The combination of all-over crystals, a high slit, an open back, and a halter sweetheart neckline gives it a high-impact look that reads as stage-ready and red-carpet polished. It works best for prom nights where you want to stand out, for pageant walks, and for formal galas and evening events where full-length glamour is expected. The Black colorway photographs dramatically and suits most skin tones; Blush is a soft, warm pink that photographs well in natural light. Lt. Blue and Champagne Beige are available to order. The open back and sleek silhouette make this a bold evening choice; as a wedding guest, it suits cocktail or black-tie receptions best. Pair it with a strappy high heel, minimal jewelry (the crystals do the work), and a small clutch.
Size & fit
- Fitted. Bust, waist and hips all matter. Go by your largest measurement.
- 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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Toronto flagship10,000 sq ft showroom, 100,000+ clients styled
15,700+ online ordersShipped to 59 countries
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Frequently Asked Questions
The XO323 is covered in individually set hot-stone rhinestone crystals, so it needs gentle handling at every stage. For spot cleaning after wearing, use a soft damp cloth with cold water and a drop of mild soap — work around the crystal surface in light circular motions rather than rubbing across stones, which can loosen the adhesive or scratch the setting. Do not machine wash this dress. Do not soak it in water. If you need a full professional clean, take it to a dry cleaner who has experience with heavily embellished formal gowns — tell them explicitly that the stones are hot-set rhinestones so they know not to expose them to high steam heat, which can pop the adhesive underneath.
For storage between wear and delivery, hang the dress on a padded wide-shoulder hanger if possible, or lay it flat in a garment bag. Do not fold it tightly with the beaded surface pressed against itself — that pressure can dislodge stones or leave impressions in the fabric. If you need to store it long-term after prom or an event, a breathable garment bag hung in a cool, dry space away from direct sunlight is best. UV light can yellow the jersey base fabric over time.
For travel, the safest approach is to carry it on the plane rather than checking it. Roll it loosely with the crystal surface facing outward rather than folding it face-to-face, and place it in a garment bag or a large zip bag. If you must fold, layer tissue paper between folds to reduce pressure on the stones. Pack it in a hard-sided bag rather than a soft duffel that will get compressed under other luggage.
The train and high slit area are the most fabric-heavy sections — make sure those are supported rather than stuffed. When you arrive, hang the dress in a steamy bathroom for fifteen to twenty minutes to release any light wrinkles from the skirt fabric. Do not iron directly on the crystal surface. If you need to press the stretch jersey skirt, use a pressing cloth between the iron and the fabric and work at a low heat setting on the non-crystal side of the skirt only.
The XO323 is a high-impact, fully crystal-covered fitted gown with a completely open back, a high front slit, and a sweetheart halter neckline. That combination makes it ideal for a specific set of events and not right for others, so it is worth being direct about both.
Where it works best: Prom is the primary occasion this dress is designed for. The all-over crystal coverage, the open back, and the sleek fitted silhouette are exactly what a prom-dress shopper is looking for when they want to be noticed. It also works very well for pageant competitions — the crystal coverage is dense enough and the gown is formal enough to read as stage-ready on a pageant floor. For formal evening events and galas where fully embellished long gowns are the norm, the XO323 fits in naturally. If you are attending a formal event where the expected dress code is black-tie or evening formal and full-length glamour is expected, this dress will meet and exceed that standard.
As a wedding guest, this dress suits evening and black-tie receptions best, where a fashion-forward, full-length silhouette is welcomed. The full open back, the high slit, and the sleek-and-sexy fitted silhouette all push it outside the modest range that works for most wedding dress codes, even dressy ones. It is also not the right choice for events where a more covered or conservative look is expected — confirmation ceremonies, religious events, or any event where back coverage is standard. If you are a member of a bridal party, confirm with the bride before wearing a full open-back crystal gown as a guest.
A note on the high slit: the slit is a front slit and gives you a full range of movement, but it is a significant slit. If your event requires you to sit on a stage, stand on a platform, or walk up stairs frequently, factor that in when deciding if this silhouette works for you. Overall, the XO323 is a statement gown for statement occasions — prom, pageant, and formal evenings are where it belongs.
Because the XO323 is covered in hot-stone rhinestone crystals from bodice to skirt, the dress itself does the heavy lifting — you do not need to add much.
For shoes, a strappy stiletto or a classic pointed-toe high heel works best with a fitted gown this sleek. The high front slit means your footwear will be visible, so pick something you want to show. Metallic silver or gold strappy heels photograph well against both the Black and Blush colorways. Nude-tone heels create a seamless leg line if you prefer a longer-looking silhouette. Platform heels work too if you want height without the narrow heel — just make sure the heel is stable for dancing or a pageant walk.
For jewelry, less is more. The crystals covering the dress already function as necklace, earrings, and bracelet all at once. If you want to add something, stick to one piece — small drop earrings or a delicate bracelet are enough. A full statement necklace will compete with the halter sweetheart neckline and the crystal bodice rather than complement it. The open back is another reason to skip a necklace — the halter tie at the nape is the focal point back there.
For a clutch or bag, a small metallic or crystal minaudière in silver or gold keeps the formal tone. Avoid a large bag, which reads as casual against this level of embellishment. Hair up tends to show off both the open back and the halter neckline to their best advantage.
The XO323 is a fitted gown, meaning it follows the body from bust through hips without flaring until the slit opens at the leg. That silhouette works very well for hourglass and pear shapes because the boned corset bodice defines the waist and the smooth skirt follows the hip curve without adding volume.
For straight or athletic builds, the boning in the corset bodice creates shape at the waist even where there is not a natural curve — it structures the torso visually. The sweetheart neckline adds width and softness across the bust, which helps create the appearance of curves.
For fuller figures, the vertical crystal lines on the skirt draw the eye up and down rather than across, which creates a lengthening effect. The high front slit also breaks the silhouette at the leg, which can make the overall look feel lighter and less column-like than a plain fitted long gown.
The halter neckline and open back do require a reasonable amount of confidence in showing your back and your neckline — there is no coverage at the back at all. If you prefer coverage at the back, this specific style may not be the right fit regardless of body type. The boned bodice is self-supporting, so no additional bra is possible or needed — the fit of the bodice is everything, which is why sizing correctly (and sizing down if between sizes) matters a lot with this style.
Portia and Scarlett XO323 ships from Marlas Fashions warehouses in Los Angeles and New York, with a standard delivery time of 7 to 12 business days from the date of order. Rush processing is available if you need it sooner — contact us before placing your order to confirm availability and timeline for rush.
For customers in Canada, the dress ships from the Toronto warehouse, and there are no import duties charged on shipments to the US or Canada. International orders outside North America ship worldwide with full tracking provided. All shipments are tracked, and you will receive tracking information once your order is processed.
If you have a specific event date, it is always worth noting it when you place your order or reaching out to confirm timing. Portia and Scarlett gowns are held in stock, but availability in specific colorways and sizes can change. Confirming your event date at order gives the team context if there are any delays to flag. Call or text our Toronto boutique at 416-536-2956 and our stylists will help you find your perfect dress.
Marlas Fashions accepts returns and exchanges on the Portia and Scarlett XO323. If the dress does not fit or is not what you expected, you have the option of a store credit that never expires, an exchange for a different size or colorway, or a refund minus a 30 percent restocking fee.
The store credit option is the most flexible if you are not sure what you want to replace it with — it does not expire, so you can use it when the next event comes around. The exchange option is the fastest path if you just need a different size.
Because the XO323 is a fitted gown with a structured boned bodice, getting the size right before ordering is worth the extra few minutes. The dress is designed to fit snugly — if you are between sizes, sizing down is generally the better call because the boning holds its shape and the stretch jersey skirt accommodates some flex. If you want to try it at home before committing, the return window gives you that option.
For specific return window details and full policy terms, check the returns page on the site or reach out directly to the Marlas Fashions team before ordering if you have questions.
A few things separate the XO323 from other fitted crystal-covered long gowns in the same category. First, the crystal coverage on XO323 runs from the bodice through the majority of the skirt — this is not a beaded bodice over a plain skirt. The hot-stone rhinestones cover the dress body at a density that reads as fully embellished in photographs and in person, which is different from styles that use crystal only as trim or accent.
Second, the construction is structured. The boned corset bodice has visible boning channels — this is not just a stiffened lining, it is actual structural boning that shapes the torso and supports the bust without a bra. That level of internal construction at a prom-dress price point is not universal.
Third, the combination of the halter sweetheart neckline and the full open back is a distinctive pairing. Many halter gowns have a keyhole or partial back — XO323 has no back coverage at all, which is a stronger visual statement from behind.
Fourth, the stretch jersey base allows the skirt to move with the body rather than holding a rigid shape, which makes it more comfortable for a long event than a stiffer fabric under the same embellishment.
Finally, Marlas Fashions is an authorized Portia and Scarlett retailer, and every dress is inspected before it ships — so what you receive matches what is shown.
The XO323 back closure is a halter tie at the nape of the neck — the neckline straps cross the open back and tie at the top. Because the back is completely open from the halter tie down to the lower back, there is no zipper or hook-and-eye running down the back of the skirt. The fit at the waist and hips comes entirely from the structured boned corset bodice and the stretch jersey skirt fabric.
The halter tie gives you a small amount of adjustability at the neckline — tying it tighter lifts the sweetheart bust slightly, and loosening it gives a little more ease across the shoulders and neckline. It is not a major fit adjustment mechanism, but it does allow you to fine-tune the neckline position once you have the dress on.
Because there is no back closure below the bodice, the most important fit decision is getting the bodice size right before the dress arrives. The boned bodice is the primary structure holding the dress in place — if it is too loose, the dress will shift and the sweetheart neckline will not stay in the right position. If the bodice fits correctly and snugly, the halter tie holds the neckline securely and the stretch skirt takes care of the rest. If you are between sizes, sizing down in the bodice is recommended for this reason.