Helsa Costanza Gown

★★★★★4.8/5· thousands of reviews

The Helsa Costanza Gown is our signature evening piece, designed for those who appreciate refined elegance. This floor-length gown features a graceful A-line silhouette that flatters every figure while allowing effortless movement.

Crafted from premium silk charmeuse, the fabric drapes beautifully and catches light with a subtle luminous finish. The bodice is thoughtfully structured with hidden boning for support without sacrificing comfort. Delicate hand-sewn beadwork along the neckline adds a touch of artistry that makes this gown unforgettable for galas, weddings, and milestone celebrations.

  • Premium silk charmeuse fabric with natural sheen
  • Floor-length A-line silhouette for universal flattering fit
  • Hidden boning in bodice for structured support
  • Hand-sewn beaded detailing along neckline
  • Invisible back zipper with hook-and-eye closure
Premium silk charmeuse fabric with natural sheenFloor-length A-line silhouette for universal flattering fitHidden boning in bodice for structured supportHand-sewn beaded detailing along necklineInvisible back zipper with hook-and-eye closure
Build quality
Everyday use
Value
Durability
Style

Fabric & construction details

Fabric & construction details

We source our silk charmeuse exclusively from certified mills known for their exceptional quality standards. The fabric weight strikes the perfect balance between substantial drape and comfortable wear throughout long events.

Each Helsa Costanza Gown is cut and assembled by hand in our atelier. Our seamstresses spend over twelve hours per gown ensuring every seam lies flat and every bead is secured with reinforced thread. The bodice construction includes eight panels that create natural shaping without restrictive compression, while the skirt flows from the natural waist in generous folds that move gracefully as you walk.


Sizing & fit guidance

Sizing & fit guidance

The Costanza Gown runs true to standard US sizing with a fitted bodice and relaxed skirt. We recommend ordering your usual dress size for the best fit. The bodice is designed to sit at the natural waist with enough structure to support without a strapless bra.

If you’re between sizes or prefer a more relaxed fit through the bodice, we suggest sizing up. The gown includes approximately two inches of seam allowance in the side seams, allowing for professional alterations if needed. Hem length is designed for 5’7″ height with three-inch heels and can be shortened or lengthened by your tailor.


Care & preservation

Care & preservation

Cleaning instructions

The silk charmeuse and hand-sewn beadwork require professional dry cleaning only. We recommend seeking a cleaner experienced with formal wear and delicate embellishments. Never attempt home washing or spot treatment, as water can permanently mark the silk.

Storage recommendations

Store your gown on a padded hanger in a breathable garment bag away from direct sunlight. Avoid plastic bags that can trap moisture. For long-term storage, consider archival tissue paper to prevent creasing. The beadwork is securely attached but should not be pressed against rough surfaces that could snag the threads.


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What people are saying

4.8
★★★★★
Based on verified reviews
Customer product photo
Customer product photo
Customer product photo
P
Patricia R.
Verified buyer
★★★★★
Absolutely stunning for my daughter's wedding
I wore the Costanza Gown as mother of the bride and received compliments all evening. The fit was perfect right out of the box, and the fabric felt luxurious against my skin. The beading caught the light beautifully in photos without looking too flashy.
M
Michelle K.
Verified buyer
★★★★★
Quality exceeded my expectations
After trying on department store gowns that felt flimsy, the Costanza was a revelation. You can feel the quality in the weight of the silk and the precision of the construction. I've worn it to three events now and it still looks brand new.
D
Diana M.
Verified buyer
★★★★★
Perfect for my body type
I'm 5'5" with an hourglass figure and the size 8 fit like it was made for me. The A-line skirt is forgiving while the bodice provides great support. I didn't need shapewear underneath, which made it comfortable to wear all night.
J
Jennifer T.
Verified buyer
★★★★★
Worth every penny
I hesitated at the price point but this gown is an investment piece I'll wear for years. The timeless design won't look dated, and the construction quality means it will last. My seamstress even commented on how well-made it was when hemming it.
K
Karen H.
Verified buyer
★★★★★
Elegant without being stuffy
I needed something formal but not overly traditional, and the Costanza hit that sweet spot perfectly. The silhouette is classic but the hand-beading gives it a modern artisan feel. I felt elegant but also like myself, not costumed.
S
Susan L.
Verified buyer
★★★★★
Customer service was exceptional too
I had questions about sizing before ordering and the team was incredibly helpful. They sent detailed measurements and even offered a video consultation. When the gown arrived, it was exactly as described. The whole experience felt luxury from start to finish.

Costanza Gown questions answered

The gown measures approximately 62 inches from the top of the bodice to the hem, designed for someone 5'7" wearing three-inch heels. This creates a floor-length silhouette that just brushes the ground. If you're shorter or taller, we recommend working with a professional seamstress to adjust the hem to your exact height and preferred heel. The hemline includes ample fabric for lengthening if needed.

Yes, the gown is designed with alteration in mind. We include two inches of seam allowance in the bodice side seams for letting out or taking in. The hem can be shortened or lengthened by a professional tailor. We recommend avoiding alterations to the beaded neckline area, as the hand-sewn detailing is difficult to replicate. Most customers need only minor hem adjustments, and we include a fabric swatch with your purchase for any alteration work.

We recommend ordering your standard US dress size based on your bust measurement. The bodice is fitted while the skirt has a relaxed A-line flow, so the bust fit is most critical. Measure around the fullest part of your bust and compare to our size chart. If you're between sizes or prefer a slightly looser bodice fit, size up. The structured boning provides support across all sizes without feeling restrictive.

The structured bodice with hidden boning provides enough support that most customers don't need a bra. If you prefer additional support, we recommend a strapless longline bra in nude or a shade matching your skin tone. Seamless underwear prevents visible lines under the silk. Some customers wear shapewear, though the A-line silhouette is naturally forgiving and doesn't require it.

Currently, the Helsa Costanza Gown is offered in our signature champagne silk. This warm neutral tone complements all skin tones and photographs beautifully in various lighting conditions. We occasionally release limited colorways during our seasonal collections. Sign up for our email list to receive notifications about new color releases and exclusive previews.

Standard shipping takes 5-7 business days within the continental US. We also offer expedited 2-3 day shipping for time-sensitive events. Each gown is carefully inspected before packing in our protective garment box. International shipping is available to select countries with delivery times varying by destination. All shipments include tracking information and require signature upon delivery.

We accept returns within 14 days of delivery for unworn, unaltered gowns with all original tags attached. The gown must be in its original garment box with tissue wrapping. We understand the importance of trying on formal wear at home, and we'll provide a full refund minus return shipping once we receive the gown in original condition. Custom alterations or removed tags make the gown non-returnable.

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