Costes Dress

L'IDÉE

4.5
(70 Reviews)

Product Details

Figure-hugging ruching makes this electric blue satin maxi shine at a formal event or on the dance floor.

Materials and Measurements

Blue satin (100% High-Grade Polyester). A-line. Long sleeves. V-neck. Back zipper closure. 55" from shoulder to hemline. Imported.

Size and Fit

Sized: 6-16, UK sizing

Model is 5'10 and wearing a size 8.

Share

Ratings &
Reviews

  (70)  

Includes written reviews and customer fit feedback.

Fit
Runs Small
True to Size
Runs Large

All Photos

Top Contributor
Size worn:
8
Overall fit:
Large
Usually wears: 6
Height: 6' 1"
Bust size: 36B
Body type: Straight & narrow
Weight: 140lbs
Browse Erica's reviews
January 17th, 2025
Love the color!

High slit, nice and long. Sized down because I have a small chest and glad I did.

Overall Fit

Runs big

Top Contributor
Size worn:
8
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 6
Height: 5' 6"
Bust size: 36D
Body type: Athletic
Weight: 144lbs
Browse Alison's reviews
August 28th, 2025
Fun and flowy

I sized up because of other reviews. Fit great!

Top Contributor
Size worn:
12
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 8
Height: 5' 8"
Bust size: 36B
Body type: Athletic
Weight: 155lbs
Browse Alexandra's reviews
September 10th, 2024
Stunner

Loved the color and fit.

Top Contributor
Size worn:
6
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 4
Height: 5' 7"
Bust size: 34C
Body type: Hourglass
Weight: 130lbs
Browse Caillie's reviews
April 19th, 2024
Comfortable elegance

The color!!!! So many compliments. The slit is high, which I loved because the body of the dress I loose. The top back strap is adjustable so you can find where it sits on your shoulders. The fabric was very airy and smooth. Fun to dance in!

Top Contributor
Size worn:
12
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 6
Height: 5' 9"
Body type: Hourglass
Weight: 155lbs
Browse Meredith's reviews
January 10th, 2024
Amazing NYE dress

I am partial to this dress because I love pleats. But it’s so comfortable and the color is amazing. You can’t wear a normal bra so be ready for tape.

Top Contributor
Size worn:
12
Overall fit:
Large
Rented for:
Everyday
Usually wears: 4
Height: 5' 5"
Bust size: 34D
Body type: Hourglass
Weight: 145lbs
Browse Erika's reviews
October 1st, 2023
Runs a bit large but so eye catching

Gorgeous, gorgeous dress. Lots of compliments and a true head turner. Wore it shopping in SoHo just because with sneakers 😂. I think you could size down and get away with it.

Top Contributor
Size worn:
6
Overall fit:
True to Size
Usually wears: 4
Height: 5' 6"
Bust size: 32C
Body type: Hourglass
Weight: 130lbs
Browse Sungita's reviews
February 27th, 2025
New favorite dress

Stunning color, love this dress!!

Overall Fit

Just right

Top Contributor
Size worn:
16
Overall fit:
True to Size
Usually wears: 12
Height: 5' 5"
Bust size: 36D
Browse Kimberly's reviews
January 22nd, 2025
PERFECT WEDDING GUEST DRESS

Overall Fit

Just right

Top Contributor
Size worn:
6
Overall fit:
True to Size
Usually wears: 2
Height: 5' 4"
Bust size: 32A
Body type: Petite
Weight: 115lbs
Browse Kristen's reviews
October 28th, 2024
Beautiful color, compliments all night!

True to size. Fit loosely on me but wanted that look. Really a stunner!

Overall Fit

Just right

Top Contributor
Size worn:
10
Overall fit:
True to Size
Usually wears: 8
Height: 5' 7"
Bust size: 34DD
Body type: Hourglass
Weight: 160lbs
Browse Erin's reviews
October 23rd, 2024
Loved it. No notes.

Overall Fit

Just right

Top Contributor
Size worn:
8
Overall fit:
True to Size
Usually wears: 6
Height: 5' 2"
Bust size: 34B
Body type: Petite
Weight: 134lbs
Browse Mandy's reviews
October 17th, 2024
Blue Showstopper

Other than the sleeves and overall length being a little too long for me (I had them cuffed in this pic), the dress was fabulous. It was super comfortable and easy to dance in. Was told it was "the dress of the night" at my event, highly recommend!

Overall Fit

Just right

Length

Too Long

Top Contributor
Size worn:
10
Overall fit:
True to Size
Usually wears: 8
Height: 5' 6"
Body type: Hourglass
Weight: 155lbs
Browse Isabelle's reviews
September 25th, 2024
Favorite rental

Favorite thing I've rented! Gorgeous color, so easy to wear, lots of compliments!

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
6
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 2
Height: 5' 8"
Bust size: 32C
Body type: Athletic
Weight: 130lbs
Browse Maya's reviews
June 30th, 2025
Obsessed

This is one of the best dresses I've ever worn! Very comfortable, flattering, chic. Will be keeping! Fits true to size

Size worn:
8
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 6
Height: 5' 9"
Bust size: 34B
Body type: Athletic
Weight: 140lbs
Browse RTR Member's reviews
February 16th, 2025
Beautiful!

I loved this dress and felt so fancy it. I received compliments all night. I sized up about 1-2 sizes. The front v was too deep for me so I used fashion tape to make it less deep. It feels really elegant and was fun to dance in as well! Highly recommend :)

Top Contributor
Size worn:
10
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 6
Height: 5' 5"
Bust size: 34DD
Body type: Hourglass
Weight: 150lbs
Browse RTR Member's reviews
November 10th, 2024
Stunning !

If you sweat or water gets on it, it is a deep color contrast so it can be noticeable. But that is it. The dress was stunning, comfortable, fit perfect and I received so many compliments

Top Contributor
Size worn:
8
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 4
Height: 5' 8"
Bust size: 32D
Body type: Pear
Weight: 145lbs
Browse Ginny's reviews
October 8th, 2024
Evening perfection

So many compliments! Flattering color and wish I could wear forever. Could have probably sized down but postpartum so didn’t mind the looser fit

Top Contributor
Size worn:
10
Overall fit:
True to Size
Usually wears: 8
Height: 5' 3"
Bust size: 34C
Body type: Pear
Weight: 145lbs
Browse Alison's reviews
September 30th, 2024
So good

Wore for a wedding in Italy and got lots of compliments. I sized down based on other reviews and it was perfect. I didn’t have to wear a bra or shapewear like I normally would, which was ideal.

Top Contributor
Size worn:
10
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 8
Height: 5' 7"
Bust size: 34C
Body type: Pear
Weight: 165lbs
Browse Cassy's reviews
September 15th, 2024
stunner!

this dress is so beautiful. the color is stunning and the texture (silky/shiny but crinkled) makes it versatile for many different kinds of events. i ordered a 12 and a 10, but ended up wearing the 10. the 12 looked too frumpy on top, since i’m smaller on top (pear shaped), and the bottom was forgiving enough for my hips/booty. the slit is pretty saucy, so i did end up pinning it a couple times — and it was still fairly high even then.

Top Contributor
Size worn:
8
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 4
Height: 5' 3"
Bust size: 32A
Body type: Pear
Weight: 145lbs
Browse Lauren 's reviews
September 12th, 2024
Simple but formal

I had so many compliments when I wore this dress. If you are looking for something that is unique but gives you an edgy look…this is your dress. BTW, I’m 5’3’ and the dress didn’t fall too long to the ground.

Size worn:
16
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 10
Height: 5' 4"
Bust size: 36C
Body type: Hourglass
Browse Sarah's reviews
June 11th, 2024
So fun!

Comfy and flattering. No Spanx or bra needed which is always a plus. The color and texture are both stunning. Slightly oversized so could’ve size down but the crepey material is very forgiving! Lots of compliments on this dress!

Size worn:
6
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 2
Height: 5' 6"
Bust size: 34B
Body type: Athletic
Weight: 129lbs
Browse Mackenzie's reviews
April 12th, 2024
Love this dress!

Loved this dress so much! I should’ve worn it to the actual wedding day events instead of the night before, I received so many compliments!

Size worn:
6
Overall fit:
True to Size
Rented for:
Party
Usually wears: 2
Height: 5' 3"
Bust size: 32B
Body type: Hourglass
Weight: 131lbs
Browse Maya's reviews
April 11th, 2024
Super flows and comfortable

Size worn:
8
Overall fit:
Large
Rented for:
Formal Affair
Usually wears: 6
Height: 5' 7"
Bust size: 34C
Body type: Hourglass
Weight: 157lbs
Browse Shelby's reviews
April 7th, 2024
SIZE DOWN!

This dress is absolutely gorgeous and so comfortable. Unless you want an oversized look, size down. RTR suggested I get a 12AUS size… which was insanely too big. Sized down to a 10AUS and still wasn’t happy with the waist and ended up going down to an 8AUS you can see my measurements for reference. Photographs so well and had a ton of compliments. If you’re taller the only downside is the slit comes up fairly high but I didn’t have any issues with it and nothing could be seen.

Top Contributor
Size worn:
14
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 8
Height: 5' 9"
Bust size: 34B
Body type: Athletic
Weight: 175lbs
Browse Amari's reviews
March 19th, 2024
WOWOWOW 10s across the board!!

I owned the room in this dress, I couldn’t make it two steps without receiving compliments! I had no idea blue was my color until now lol! I almost ordered a size smaller, but something told me to order up, and I am so glad that I did! Seeing this was a work event the large wasn’t too formfitting, if I was going to a wedding, I would probably go with a medium (I’m 5’9 and between an 8 and 10) I wore 2 inch heels and the length was right at my ankles. 10/10 dress!

Size worn:
10
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 6
Height: 5' 4"
Bust size: 36B
Body type: Athletic
Weight: 145lbs
Browse Kat's reviews
February 8th, 2024
So many compliments!

The only thing I would change is how long the sleeves were on me. I wish they were more fitting to the wrist area. Such a beautiful dress, if you want to stand out in a crowd this is your chance!

Top Contributor
Size worn:
8
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 4
Height: 5' 6"
Body type: Athletic
Browse RTR Member's reviews
January 8th, 2024
So unique - color will dazzle at events

This is a great formal dress for events like a wedding. The color will make you stand out in a crowd for sure. The fit matched my usual size exactly. The neckline is tasteful and not to low and the slit is fun.

Top Contributor
Size worn:
14
Overall fit:
True to Size
Rented for:
Other
Usually wears: 10
Height: 5' 7"
Bust size: 34D
Body type: Hourglass
Browse Hollie's reviews
December 31st, 2023
Perfection

This dress is like one of Blanche Devereaux’s nightgowns. Silky, seductive, but simple. I would wear this every single day. Obviously, it is low-cut and high-cut, plan accordingly.

Top Contributor
Size worn:
6
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 2
Height: 5' 9"
Bust size: 32C
Body type: Straight & narrow
Weight: 130lbs
Browse Kendall's reviews
December 28th, 2023
Obsessed!

I wish I could buy this dress I love it so much. It is absolutely stunning on. I got so many compliments. The color is exactly how it’s shown. I will say the slit does come up pretty high so be cautious of that. I used a safety pin to close it a little.

Top Contributor
Size worn:
12
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 6
Height: 5' 2"
Bust size: 34D
Body type: Petite
Weight: 132lbs
Browse Jenna's reviews
November 14th, 2023
So many compliments

The color is amazing! The dress is very forgiving. A little long in the sleeve but other than that, A+

Top Contributor
Size worn:
12
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 6
Height: 5' 7"
Bust size: 32C
Body type: Straight & narrow
Weight: 134lbs
Browse Bb's reviews
November 9th, 2023
25 weeks pregnant, usually a S/M I wore the Size 12

The waist is not elastic just be aware. So if you’ve got a bump/wearing this while pregnant just know you will need to hike the skirt part up over your belly. This dress is a beautiful color IMO and was very comfortable. At the time I was 160lbs, in middle of 2nd trimester.

Top Contributor
Size worn:
6
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 2
Height: 5' 7"
Bust size: 32B
Body type: Athletic
Weight: 125lbs
Browse Stacey's reviews
November 6th, 2023
Amazing!

Incredible dress. A million compliments. I used fashion tape to keep the low cut too in place. Padded shoulders but not noticeably so. Thin light fabric so you will need a jacket if outside. Loved this one. Does run slightly large so size down if concerned.

Size worn:
10
Overall fit:
True to Size
Usually wears: 6
Height: 5' 4"
Body type: Athletic
Browse Lauren's reviews
October 18th, 2023
Loved this dress! Runs a little large so I’d get your size and a free size smaller just incase

Wore to a black tie wedding. It’s the perfect length (not too long) and has light padding in the shoulders which make the look

Size worn:
12
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 6
Height: 5' 8"
Body type: Hourglass
Weight: 150lbs
Browse RTR Member's reviews
October 17th, 2023
Stunning dress

Wore to black tie, received many compliments. I’m usually a 6 or 8 and wore the aus 12 and fit comfortably.

Top Contributor
Size worn:
16
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 10
Height: 5' 9"
Bust size: 36D
Body type: Hourglass
Weight: 175lbs
Browse Melissa's reviews
October 6th, 2023
Great event dress!

I was worried with the UK sizing and the fact that I’m not entirely sure my sizing post-pregnancy. I grabbed the largest size (US10) and hoped for the best. The 10 fit really great. There wasn’t a ton of stretch, but enough room to maneuver at the event - including seating, large dinner, and dancing. I used tape for the girls but could have done without if I just hadn’t gotten through breastfeeding. The color is great and the sleeves even out the low front/ back. Really great dress overall!

Top Contributor
Size worn:
12
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 6
Height: 5' 11"
Bust size: 34B
Body type: Athletic
Weight: 155lbs
Browse Anna's reviews
October 4th, 2023
Beautiful color and very comfortable

Stunning color! Got the most compliments I’ve ever gotten wearing this dress. Wore to a black tie wedding. Hit my ankles but didn’t feel like it was too short. Travels well and is light fabric. Not form fitting around the waist, but the fabric is meant to be loser and the low front/back and slit make it feel sexy

Top Contributor
Size worn:
14
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 12
Height: 5' 9"
Body type: Hourglass
Browse Casey's reviews
September 28th, 2023
This dress was a show stopper! Got so many compliments & was super comfortable all night!

Top Contributor
Size worn:
6
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 0
Height: 5' 6"
Bust size: 32B
Body type: Straight & narrow
Weight: 125lbs
Browse Kinesha's reviews
October 13th, 2023
2nd Time Renting

Didn't end up wearing but still a fave.

Overall Fit

Just right

Top Contributor
Size worn:
8
Overall fit:
True to Size
Usually wears: 4
Height: 5' 3"
Weight: 132lbs
Browse Tefi 's reviews
June 19th, 2025
Loved it!

It fits just right definitely not tight.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
10
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 6
Height: 5' 9"
Bust size: 36B
Body type: Straight & narrow
Weight: 136lbs
Browse Brooke's reviews
April 30th, 2024
Great color!

This dress was super comfy for a black tie gala. Deep vee so I used fashion tape to make sure it remained work appropriate. The color was eye catching and I got many compliments. The back cut out was also very flattering. The only negative is that the fabric didn't feel lux, I wouldn't have bought this in the store for the price but am happy I rented it. Very high slit, ended up using fashion tape to bring.it down about 3 inches.

Top Contributor
Size worn:
14
Overall fit:
Large
Rented for:
Formal Affair
Usually wears: 10
Height: 5' 5"
Bust size: 38D
Body type: Athletic
Weight: 160lbs
Browse Katie's reviews
October 2nd, 2024
Awkward fit all around

Shoulder pads were not removable and made for weird proportions. Sleeves were far too long. Low cut was expected but back was not as adjustable as strap could have been. Did not wear.

See more reviews:
1 / 2

Here to brighten up your inbox.

Emails are the fastest way to learn about new styles, sales, and more.