Name: Mermaid Princess Halloween Costume
Brand: Mia Belle Girls
SKU: GSDRE753-Multicolor-1
Price: 44.99 USD
Availability: InStock

Magical mermaid princess costume for girls with shimmering green and purple colors.

Mermaid princess costume for girls featuring a seashell-inspired top and scale-print skirt.

Girl wearing a Mermaid Princess Halloween costume with a shimmering two-piece outfit.

Ocean-inspired girls Halloween costume with sparkling mermaid details.

$44.99

Ships Next Day

Get FREE RETURNS on this style!

Get $0.00 back in store credit on this product. Join the rewards program or Log in.

Features a two-piece mermaid-inspired set with a shimmering seashell-style top, soft tulle shoulder accents, and a sparkling scale-print skirt with whimsical tulle trim.
Lightweight, comfortable fabric allows for easy movement during trick-or-treating, Halloween parties, school events, stage performances, and dress-up play.
Perfect for Halloween, mermaid-themed birthdays, ocean parties, fantasy photoshoots, princess adventures, and everyday imaginative play.
Costume Includes: Two-piece top and skirt set in girls' sizes 2T–12.
Add-On Options: crown, shoes, sparkling tights, and face glitter.
Adult supervision required. Not to be worn as sleepwear.

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

Complete the Look

Add to cart

Shiny Sequin Body Glitter Gel

$19.99

Add to cart

Girls Glitter Ballet Flats

$27.99

Add to cart

Girls White Rhinestone Embellished Fishnet Tights

$23.99

Add to cart

Girls Sea Theme Mermaid Purple Crown

$14.99

Add To cart

[{"id":51425373487268,"title":"Multicolor \/ 2T\/3T","option1":"Multicolor","option2":"2T\/3T","option3":null,"sku":"GSDRE753-Multicolor-1","requires_shipping":true,"taxable":true,"featured_image":{"id":51325209346212,"product_id":10368055902372,"position":1,"created_at":"2026-08-03T12:44:42-04:00","updated_at":"2026-08-03T12:44:43-04:00","alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","width":1200,"height":1600,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483","variant_ids":[51425373487268,51425373520036,51425373552804,51425373585572,51425373618340,51425373651108]},"available":true,"name":"Mermaid Princess Halloween Costume - Multicolor \/ 2T\/3T","public_title":"Multicolor \/ 2T\/3T","options":["Multicolor","2T\/3T"],"price":4499,"weight":181,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","id":42840905580708,"position":1,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51425373520036,"title":"Multicolor \/ 4T","option1":"Multicolor","option2":"4T","option3":null,"sku":"GSDRE753-Multicolor-2","requires_shipping":true,"taxable":true,"featured_image":{"id":51325209346212,"product_id":10368055902372,"position":1,"created_at":"2026-08-03T12:44:42-04:00","updated_at":"2026-08-03T12:44:43-04:00","alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","width":1200,"height":1600,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483","variant_ids":[51425373487268,51425373520036,51425373552804,51425373585572,51425373618340,51425373651108]},"available":true,"name":"Mermaid Princess Halloween Costume - Multicolor \/ 4T","public_title":"Multicolor \/ 4T","options":["Multicolor","4T"],"price":4499,"weight":215,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","id":42840905580708,"position":1,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51425373552804,"title":"Multicolor \/ 4\/5","option1":"Multicolor","option2":"4\/5","option3":null,"sku":"GSDRE753-Multicolor-3","requires_shipping":true,"taxable":true,"featured_image":{"id":51325209346212,"product_id":10368055902372,"position":1,"created_at":"2026-08-03T12:44:42-04:00","updated_at":"2026-08-03T12:44:43-04:00","alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","width":1200,"height":1600,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483","variant_ids":[51425373487268,51425373520036,51425373552804,51425373585572,51425373618340,51425373651108]},"available":true,"name":"Mermaid Princess Halloween Costume - Multicolor \/ 4\/5","public_title":"Multicolor \/ 4\/5","options":["Multicolor","4\/5"],"price":4499,"weight":252,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","id":42840905580708,"position":1,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51425373585572,"title":"Multicolor \/ 6\/6x","option1":"Multicolor","option2":"6\/6x","option3":null,"sku":"GSDRE753-Multicolor-4","requires_shipping":true,"taxable":true,"featured_image":{"id":51325209346212,"product_id":10368055902372,"position":1,"created_at":"2026-08-03T12:44:42-04:00","updated_at":"2026-08-03T12:44:43-04:00","alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","width":1200,"height":1600,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483","variant_ids":[51425373487268,51425373520036,51425373552804,51425373585572,51425373618340,51425373651108]},"available":true,"name":"Mermaid Princess Halloween Costume - Multicolor \/ 6\/6x","public_title":"Multicolor \/ 6\/6x","options":["Multicolor","6\/6x"],"price":4499,"weight":275,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","id":42840905580708,"position":1,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51425373618340,"title":"Multicolor \/ 7\/8","option1":"Multicolor","option2":"7\/8","option3":null,"sku":"GSDRE753-Multicolor-5","requires_shipping":true,"taxable":true,"featured_image":{"id":51325209346212,"product_id":10368055902372,"position":1,"created_at":"2026-08-03T12:44:42-04:00","updated_at":"2026-08-03T12:44:43-04:00","alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","width":1200,"height":1600,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483","variant_ids":[51425373487268,51425373520036,51425373552804,51425373585572,51425373618340,51425373651108]},"available":true,"name":"Mermaid Princess Halloween Costume - Multicolor \/ 7\/8","public_title":"Multicolor \/ 7\/8","options":["Multicolor","7\/8"],"price":4499,"weight":309,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","id":42840905580708,"position":1,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51425373651108,"title":"Multicolor \/ 10\/12","option1":"Multicolor","option2":"10\/12","option3":null,"sku":"GSDRE753-Multicolor-6","requires_shipping":true,"taxable":true,"featured_image":{"id":51325209346212,"product_id":10368055902372,"position":1,"created_at":"2026-08-03T12:44:42-04:00","updated_at":"2026-08-03T12:44:43-04:00","alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","width":1200,"height":1600,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483","variant_ids":[51425373487268,51425373520036,51425373552804,51425373585572,51425373618340,51425373651108]},"available":true,"name":"Mermaid Princess Halloween Costume - Multicolor \/ 10\/12","public_title":"Multicolor \/ 10\/12","options":["Multicolor","10\/12"],"price":4499,"weight":360,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","id":42840905580708,"position":1,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":51425373487268,"title":"Multicolor \/ 2T\/3T","option1":"Multicolor","option2":"2T\/3T","option3":null,"sku":"GSDRE753-Multicolor-1","requires_shipping":true,"taxable":true,"featured_image":{"id":51325209346212,"product_id":10368055902372,"position":1,"created_at":"2026-08-03T12:44:42-04:00","updated_at":"2026-08-03T12:44:43-04:00","alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","width":1200,"height":1600,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483","variant_ids":[51425373487268,51425373520036,51425373552804,51425373585572,51425373618340,51425373651108]},"available":true,"name":"Mermaid Princess Halloween Costume - Multicolor \/ 2T\/3T","public_title":"Multicolor \/ 2T\/3T","options":["Multicolor","2T\/3T"],"price":4499,"weight":181,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Magical mermaid princess costume for girls with shimmering green and purple colors.","id":42840905580708,"position":1,"preview_image":{"aspect_ratio":0.75,"height":1600,"width":1200,"src":"\/\/miabellegirls.com\/cdn\/shop\/files\/GSDRE753-Multicolor.jpg?v=1785775483"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

Trending with customers like you:

Mermaid Princess Halloween Costume

$44.99