MOVING SALE | UP TO 80% OFF
★★★★★ 4.7 based on 29,000+ reviews

Roselani™ – Rosette Shoulder Mermaid Evening Gown

Regular price $339.95 Sale price$159.95

or 4 easy payments of$39.98 with Afterpay

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UPDATE: Due to our moving sale, stock is running low. If you can still press the "ADD TO CART" button, there is still some stock left.

A Gown Built For The Moment You Walk In

You've got the wedding on the calendar.

The gala. The dinner.

And nothing in your closet feels like the dress.

This one does. The 3D rosette shoulder with cascading chain detail sets it apart the second you walk in — paired with a mermaid fit that hugs your waist and a ruffled high slit that moves with you.

Slip it on, zip it up, ready in minutes. No alterations, no second-guessing.

A repeat best-seller for wedding season

WALK IN AND WATCH HEADS TURN
The 3D rosette shoulder and crystal chain drape catch the light from across the room — distinctive enough that nobody else will be wearing it.

MERMAID FIT THAT FLATTERS YOUR CURVES
Stretch fabric hugs the waist, skims the hips, and flares at the hem — defined silhouette without squeezing.

HIGH SLIT WITH RUFFLE — SUBTLE NOT SCANDALOUS
The cascading ruffle covers the slit when you stand still and reveals just enough leg when you walk — wedding-guest appropriate.

GOES FROM CEREMONY TO DANCEFLOOR
Floor-length maxi cut, comfortable stretch waist, and soft-lined bodice — wear it for 8 hours without adjusting.

5 SHADES INCLUDING WEDDING-SEASON FAVORITES
Plum, navy, emerald, wine, burgundy, and yellow — the kind of jewel tones that photograph beautifully under venue lighting.

What you get today

  • Roselani™ Evening Gown in your chosen color and size
  • Statement 3D rosette shoulder + crystal chain drape
  • Ruffled high-slit mermaid silhouette
  • Free tracked shipping
  • 30-day at-home try-on

Seasonal production run — once this batch sells out, restock pricing may change.

Slip into the gown that turns the room — only while this batch lasts.

30-day at-home trial
Try Roselani™ at home for 30 days. If it doesn't fit, look right, or wear the way you expected, return it for a full refund.


Frequently asked questions

Is the slit appropriate for a wedding?
Yes. The cascading ruffle covers the slit when you stand still, so it reveals leg only when you walk. It's styled for formal events including weddings.

Does the fabric feel cheap or look shiny on camera?
The stretch fabric has a matte, soft finish — not the slick polyester look. It photographs as a rich, deep tone in both daylight and venue lighting.

Will the mermaid fit work if I'm not slim?
Yes — sizes run S to 5XL and the stretch fabric adapts to fuller hips and bust. We recommend sizing up one for a comfortable fit through the waist and hip.

How long is the dress?
Floor-length, designed for heels. Length runs about 45.5 to 48.5 inches depending on size. Best for heights 5'4" to 5'10" with 3-inch heels.

Specifications

  • Size: S to 5XL
  • Material: Stretch synthetic blend, soft matte finish, lined bodice
  • Length: Floor-length maxi (mermaid silhouette)
  • Slit: High thigh slit with ruffle overlay

How to wash

  • Hand wash cold with mild detergent
  • Do not bleach
  • Hang dry
  • Steam to remove wrinkles — do not iron rosette detail directly

Live in the USA? Enjoy free shipping within 3-5 days! Your order will be delivered by USPS, UPS, or another trusted shipping provider.

Love it or return it — full refund or exchange within 60 days, no questions asked.

Roselani™ – Rosette Shoulder Mermaid Evening Gown

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60-Day Money-Back Guarantee

I want you to love your products.

If you’re not completely satisfied with your purchase, you have 60 days to return it for a full refund.

Loved by 29,000+ women in-store and online 🤍

★★★★★

"Sad to see Tessa moving… she always helped me find the perfect piece every time I stopped by. I’ll be ordering online from now on."

Sandra, San Francisco
★★★★★

“Whenever I’m in Cali at my cousins’, I always stop by Tessa’s cozy boutique. She seriously has the nicest dresses ever. And the online orders always arrive super fast too.”

Michelle, Seattle
★★★★★

"Visited the boutique last month and walked out with the most beautiful linen dress, Tessa is an absolute gem."

Vivian, San Francisco
★★★★★

"Ordered online and the blouse arrived even more beautiful than the photos, will definitely be back."

Carolyn, Las Vegas
★★★★★

"I don't know how to explain it but everything in here just fits differently. Left with two dresses and already thinking about coming back for a third."

Karen, San Francisco
My dresses & sandals

All Handcrafted with Love

Every dress and sandal in our collection is made with the same care and attention we've put into our boutique for 27 years. From the fabric to the fit — nothing leaves our hands unless it feels just right. This is what handcrafted really means.

My Boutique

98 Hayes St • Hayes Valley

San Francisco, CA 94102

✉️ info@tessabayside.com
📞 +1 (307) 310-4366

Mo - Fr: 9:00 AM - 6:00 PM
Sa - Su: 11:00 AM - 3:00 PM

Roselani™ – Rosette Shoulder Mermaid Evening Gown