35% OFF Sitewide

Use code: BESTGIFT

14:27:21

Hrs

Mins

Secs

⇤

VIP ONLY

Enter passcode

One or more of the items in your cart is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.

Skip to content

Free Shipping on all orders $100+

AMERICANA
BEST SELLERS
NEW
GIRLS
MOMMY & ME
COLLABS
COSTUMES
SHOES
- Flats
- Sandals
- Sneakers
- Boots
- Loafers
SALE
- Spring Clearance
- Mystery Boxes
Log in

Instagram
Facebook
YouTube
Pinterest
TikTok

Cart

Subtotal

$0.00

Shipping, taxes, and discount codes calculated at checkout.

Your cart is currently empty.

Currency

Australia (AUD $)
Austria (EUR €)
Belgium (EUR €)
Canada (CAD $)
Czechia (CZK Kč)
Denmark (DKK kr.)
Finland (EUR €)
France (EUR €)
Germany (EUR €)
Hong Kong SAR (HKD $)
Ireland (EUR €)
Israel (ILS ₪)
Italy (EUR €)
Japan (JPY ¥)
Malaysia (MYR RM)
Netherlands (EUR €)
New Zealand (NZD $)
Norway (USD $)
Poland (PLN zł)
Portugal (EUR €)
Singapore (SGD $)
South Korea (KRW ₩)
Spain (EUR €)
Sweden (SEK kr)
Switzerland (CHF CHF)
United Arab Emirates (AED د.إ)
United Kingdom (GBP £)
United States (USD $)

Search

AMERICANA
BEST SELLERS
NEW
GIRLS
MOMMY & ME
COLLABS
COSTUMES
SHOES
SALE
- Spring Clearance
- Mystery Boxes

Search

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Home /

Under The Sea Sequin Mermaid Dress

Regular price$57.99

/

Arrives In 14 To 21 Business Days

Save 35% Off On This Style, Use Code: BESTGIFT

Get FREE RETURNS on this style!

Color

Color

Blue

Size

Size

18MON

2T

3T

5Y

7Y

10Y

Product opens in a new tab.

Complete the look

Pearls and Shimmer Sandals By Liv and Mia

Checkbox for Pearls and Shimmer Sandals By Liv and Mia

Pearls and Shimmer Sandals By Liv and Mia

Variant selector for Pearls and Shimmer Sandals By Liv and Mia

$39.99 USD

Girls Glittery Mermaid Seashell Earrings

Checkbox for Girls Glittery Mermaid Seashell Earrings

Girls Glittery Mermaid Seashell Earrings

Variant selector for Girls Glittery Mermaid Seashell Earrings

$19.99 USD

Mermaid Magic Pink Sequin Fanny Pack

Checkbox for Mermaid Magic Pink Sequin Fanny Pack

Mermaid Magic Pink Sequin Fanny Pack

$24.99 USD

Watch your little girl shine in this magical sequin mermaid dress. Inspired by the enchanting colors of the sea, this pretty number features flutter sleeves, a sequined bodice, and a flowy silhouette. She'll be so obsessed, she'll want to wear this EVERYWHERE!
Soft fabric offers comfort so she can move around without feeling restricted. Comfy clothing equals a happy baby!
Flowy skirt will inspire her to twirl, dance, and have fun wherever she is. Guaranteed to boost her style and her mood too.
Ideal for her spring, summer, dressy outings, party events, and special occasions
Flutter sleeve mermaid-inspired sequin dress with bodice embroidery
Available in sizes 18MON; 2T-10Y for toddlers and little girls

Machine wash cold; hang to dry
Products purchased from Mia Belle Girls should only be used under adult supervision.
See Return & Exchange policy here

Share Share on Facebook Pin it Pin on Pinterest

[{"id":46052437098660,"title":"Blue \/ 18MON","option1":"Blue","option2":"18MON","option3":null,"sku":"0","requires_shipping":true,"taxable":true,"featured_image":{"id":45666335359140,"product_id":8740429234340,"position":6,"created_at":"2024-07-22T00:33:44-04:00","updated_at":"2024-07-22T00:33:44-04:00","alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","width":1200,"height":1600,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824","variant_ids":[46052437098660,46052437131428,46052437164196,46052437196964,46052437229732,46052437262500]},"available":true,"name":"Under The Sea Sequin Mermaid Dress - Blue \/ 18MON","public_title":"Blue \/ 18MON","options":["Blue","18MON"],"price":5799,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","id":38408343355556,"position":6,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":46052437131428,"title":"Blue \/ 2T","option1":"Blue","option2":"2T","option3":null,"sku":"0","requires_shipping":true,"taxable":true,"featured_image":{"id":45666335359140,"product_id":8740429234340,"position":6,"created_at":"2024-07-22T00:33:44-04:00","updated_at":"2024-07-22T00:33:44-04:00","alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","width":1200,"height":1600,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824","variant_ids":[46052437098660,46052437131428,46052437164196,46052437196964,46052437229732,46052437262500]},"available":true,"name":"Under The Sea Sequin Mermaid Dress - Blue \/ 2T","public_title":"Blue \/ 2T","options":["Blue","2T"],"price":5799,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","id":38408343355556,"position":6,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":46052437164196,"title":"Blue \/ 3T","option1":"Blue","option2":"3T","option3":null,"sku":"0","requires_shipping":true,"taxable":true,"featured_image":{"id":45666335359140,"product_id":8740429234340,"position":6,"created_at":"2024-07-22T00:33:44-04:00","updated_at":"2024-07-22T00:33:44-04:00","alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","width":1200,"height":1600,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824","variant_ids":[46052437098660,46052437131428,46052437164196,46052437196964,46052437229732,46052437262500]},"available":true,"name":"Under The Sea Sequin Mermaid Dress - Blue \/ 3T","public_title":"Blue \/ 3T","options":["Blue","3T"],"price":5799,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","id":38408343355556,"position":6,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":46052437196964,"title":"Blue \/ 5Y","option1":"Blue","option2":"5Y","option3":null,"sku":"0","requires_shipping":true,"taxable":true,"featured_image":{"id":45666335359140,"product_id":8740429234340,"position":6,"created_at":"2024-07-22T00:33:44-04:00","updated_at":"2024-07-22T00:33:44-04:00","alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","width":1200,"height":1600,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824","variant_ids":[46052437098660,46052437131428,46052437164196,46052437196964,46052437229732,46052437262500]},"available":true,"name":"Under The Sea Sequin Mermaid Dress - Blue \/ 5Y","public_title":"Blue \/ 5Y","options":["Blue","5Y"],"price":5799,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","id":38408343355556,"position":6,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":46052437229732,"title":"Blue \/ 7Y","option1":"Blue","option2":"7Y","option3":null,"sku":"0","requires_shipping":true,"taxable":true,"featured_image":{"id":45666335359140,"product_id":8740429234340,"position":6,"created_at":"2024-07-22T00:33:44-04:00","updated_at":"2024-07-22T00:33:44-04:00","alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","width":1200,"height":1600,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824","variant_ids":[46052437098660,46052437131428,46052437164196,46052437196964,46052437229732,46052437262500]},"available":true,"name":"Under The Sea Sequin Mermaid Dress - Blue \/ 7Y","public_title":"Blue \/ 7Y","options":["Blue","7Y"],"price":5799,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","id":38408343355556,"position":6,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":46052437262500,"title":"Blue \/ 10Y","option1":"Blue","option2":"10Y","option3":null,"sku":"0","requires_shipping":true,"taxable":true,"featured_image":{"id":45666335359140,"product_id":8740429234340,"position":6,"created_at":"2024-07-22T00:33:44-04:00","updated_at":"2024-07-22T00:33:44-04:00","alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","width":1200,"height":1600,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824","variant_ids":[46052437098660,46052437131428,46052437164196,46052437196964,46052437229732,46052437262500]},"available":true,"name":"Under The Sea Sequin Mermaid Dress - Blue \/ 10Y","public_title":"Blue \/ 10Y","options":["Blue","10Y"],"price":5799,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","id":38408343355556,"position":6,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":46052437098660,"title":"Blue \/ 18MON","option1":"Blue","option2":"18MON","option3":null,"sku":"0","requires_shipping":true,"taxable":true,"featured_image":{"id":45666335359140,"product_id":8740429234340,"position":6,"created_at":"2024-07-22T00:33:44-04:00","updated_at":"2024-07-22T00:33:44-04:00","alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","width":1200,"height":1600,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824","variant_ids":[46052437098660,46052437131428,46052437164196,46052437196964,46052437229732,46052437262500]},"available":true,"name":"Under The Sea Sequin Mermaid Dress - Blue \/ 18MON","public_title":"Blue \/ 18MON","options":["Blue","18MON"],"price":5799,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":"Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses","id":38408343355556,"position":6,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/www.miabellebaby.com\/cdn\/shop\/files\/Reizingforlistings_55_75caf043-a8a9-4505-83bd-ef41b1e4fb25.png?v=1721622824"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

Trending with customers like you:

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses

Under The Sea Sequin Mermaid Dress

Recently viewed

Customer Care

Track Your Order
Returns and Exchanges Portal
Contact Us
Sizing Charts
Shipping Policy
Returns & Exchange Policy
Privacy Policy
Terms of Service
FAQs

Discover Mia Belle Girls

Our Story
Rewards Program
Become an Ambassador: Earn Commission
Wholesale
Shopify Collective
Model Submissions
Blog
FAQs

Get 20% off your first order!

Sign up to receive updates, access to exclusive deals, new product launches & more!

Enter your email Subscribe

Instagram
Facebook
YouTube
Pinterest
TikTok

© 2025 Mia Belle Girls All Rights Reserved.

Mia Belle Girls Sequin Mermaid Dress | Girls Costume Dresses