4.9/5 from 621 reviews

Cosima | Elegant 3-Piece Set

£99.95 £49.95 Save 50%
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Only 11 Left In Stock!
Ships by Wed, Aug 05
UK Free Delivery
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STOCK UPDATE

Due to high demand, only a few items are left in stock. If you can still click "Add to Cart", the item is still available.

The Cosima Elegant 3-Piece Set is designed for women who appreciate timeless sophistication, effortless comfort and versatile styling in one refined ensemble. Combining modern elegance with a relaxed luxurious feel, this beautifully coordinated set transitions seamlessly from daytime meetings to evening occasions without compromising on comfort or style.

Crafted from a soft lightweight fabric with an elegant drape, Cosima flatters the silhouette while allowing natural movement throughout the day. The clean lines and polished finish create a refined look that feels both modern and effortlessly wearable. Whether styled together for a complete elevated outfit or worn separately for endless combinations, this set quickly becomes a staple in any sophisticated wardrobe.

Perfect for office days, dinner plans, travel or relaxed everyday dressing, the Cosima set offers understated luxury that feels stylish in every season.

Why you'll love the Cosima set

• Elegant 3-piece design for a complete polished look

• Soft lightweight fabric with a breathable comfortable feel

• Flattering relaxed silhouette that drapes beautifully on the body

• Timeless minimalist styling suitable for both casual and sophisticated occasions

• Perfect for office wear, evenings out, travel and everyday elegance

• Easy to mix and match with other wardrobe essentials

• Designed for effortless comfort without sacrificing style

• A versatile all-season set that remains chic year after year

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Today Only: Free UK Delivery with Full Tracking

Your order is dispatched quickly from our warehouse and delivered with reliable tracking across the UK for a smooth, worry-free experience.

Estimated Delivery time:

6–10 Business Days after dispatch.

If your item doesn’t fit or meet your expectations, you can return it within 30 days.
Simply keep the product in its original condition and contact our customer support — we’ll be happy to help and take care of the rest.

At Luna & Briar London, true elegance starts with the materials we choose. Every piece — clothing and jewellery alike — is crafted from carefully selected, high-quality materials designed to look refined and feel exceptional.

Our garments use soft, breathable fabrics chosen for comfort, movement, and effortless sophistication — from smooth cotton blends to premium knits, each selected for durability and a timeless finish. Colours may vary slightly from images due to screen settings.

Our jewellery is crafted from premium stainless steel — water-resistant and tarnish-resistant, made to keep its shine without fading, even with everyday wear.

Timeless design, elevated by quality materials made to be worn, enjoyed, and trusted — season after season.

COMBINE AND RECEIVE AN EXTRA 15% OFF

About us

Luna & Briar London was founded in 2019, built on a simple idea — that elegance shouldn't come with an expiry date.

We design for women who value quality over trend, and comfort without compromise. Every piece is chosen with intention, made to be worn with confidence.

At Luna & Briar, style isn't just seen — it's felt.

Frequently asked questions

After processing, orders are dispatched and delivery typically takes 5-10 business days.

Please note that delivery times are estimates and may vary due to factors outside our control, including carrier delays, or peak periods.

Yes, once you've placed your order, a confirmation will be sent to your email inbox. If you don’t see it, feel free to reach out to our customer service team, we’re happy to help you right away.

Email: info@lunabriar.com

If your item doesn’t fit or meet your expectations, you can return it within 30 days of delivery. Simply keep the product in its original condition and contact our customer support within 14 days of receiving your order— we’ll be happy to assist you with the return process.

Yes, we offer free premium shipping because we value you as a customer and want to provide you with the best service.

You can track your order by entering your Order Number or Email/Phone Number on the "Track Your Order" page. Once you’ve entered your information and clicked "Track," you will be able to see the status of your order.

Once your order has been dispatched, you will receive an email confirmation with your tracking details. From that moment, you will be able to follow your parcel’s journey to your address.

Orders are typically processed within 1–2 business days. Delivery times vary by location, but most orders arrive within 3–7 business days. You’ll receive tracking details once your order ships.

Credit Card: Visa, Mastercard, American Express, Apple Pay, Google Pay, Maestro, and Shop Pay and Paypal

★★★★★ Rated 4.8/5 by 50,000+ Women

★★★★★

"Thank you, very satisfied"

Camilla T.
★★★★★

"Dear team, thank you I love the bag and its colour"

Christine H.
★★★★★

"This is my second order and it's just as good as the first. Consistent quality every time, which is honestly rare when shopping online."

Wendy S.
London
★★★★★

"Hi Luna & Briar team, my order arrived yesterday and it's absolutely lovely, my wife is going to be so happy with it for her birthday on the 14th of May, many thanks."

T. Wallace
★★★★

"Finding clothes that are both stylish and comfortable isn't easy, but Luna & Briar gets it right every time. The quality exceeded my expectations, thank you Sophie from customer support for the help."

Diane W.
Leeds
★★★★★

"Hi Luna & Briar, the necklace arrived this morning, excellent item."

David R.
★★★★★

"The material feels beautifully made, the sizing is spot on, and it genuinely makes me feel like myself again. I'll definitely be shopping here again."

Emily H.
Birmingham
★★★★★

"I almost didn't buy this — I've been let down by online fashion before, photos looking nothing like the real thing. I ordered more out of curiosity than confidence.

I was wrong to doubt it. The quality is obvious the second you unwrap it. It sits well, moves well, and doesn't fall apart once you're actually wearing it.

I've worn it three times now — family lunch, a quick shop, a proper night out — and it's worked every time.

What really got me is the comfort. I run warm and I'm usually fidgeting within the hour. Not this time, I forgot I had it on.

I've already recommended it to two friends, and I want to buy it in another colour myself before it sells out again — it's already been out of stock once.

If you're on the fence like I was, don't be. Just get it."

Rachel P.
Manchester
★★★★

"Delivery took a bit longer than expected, but honestly for the price and quality I can't fault it. The dress is gorgeous and I've already worn it more times than I thought I would."

Karen B.
Sheffield

FREE FAST SHIPPING

We are offering free shipping on all orders. All orders ship with Royal Mail and include full tracking.

24/7 CUSTOMER SERVICE

If you have any questions, feedback, or concerns about your order, don't worry! Our customer service team is here to assist you.

30-DAY MONEY-BACK GUARANTEE

At Luna & Briar London, you can shop with peace of mind thanks to our 30-day money-back guarantee. Simply return your items within 30 days.