- S (AU 8-10) - $69.29
- M (AU 12-14) - $69.29
- L (AU 16-18) - $69.29
Womens Queen Neptune Mermaid Costume - Dark Sea Goddess Dress
DELIVERY
- Dispatch: Within 24 Hours
- Registered & Express Post for ALL Orders.
- Pick up is available.
- Easy 14 days returns and exchanges
RETURNS
If you do not like the product you can return it within 14 days - no questions asked. This excludes stockings, gloves, swimwear and clearance sale items. We have an easy and hassle-free return policy. Please look at our Delivery & Returns section for further information.
PRODUCT DETAILS
What's in the Box
- Halter-neck bodice in holographic ombré fabric with structured cups and sheer mesh panels
- Floor-length mermaid skirt with metallic scale print and sheer organza fin tail
- Sequined wave-pattern belt with iridescent dangles
- Trident sceptre with ornate shell-motif handle
This Womens Queen Neptune Mermaid Costume reimagines the Roman sea deity as a dark ocean queen — all iridescent purple-to-teal ombré, printed fish-scale texture, and a dramatic sheer fin that pools at your feet. The fitted bodice has a sweetheart neckline with black lace trim and sheer mesh at the shoulders; the mermaid-silhouette skirt hugs through the hips then flares into a layered organza tail. Sequined belt cinches at the waist with wave-motif detail and dangling oval sequins that catch the light.
The holographic fabric shifts from deep purple to aqua depending on the angle — stage lights and camera flashes love it. Sheer black organza fin overlay mimics the structure of a real fish tail with metallic rays running through. Trident sceptre has a shell-carved base wrapped in black tulle. The whole effect is theatrical, gothic, and unmistakably mythological.
Perfect For
Halloween & Costume Parties: A standout pick for Halloween, villain-themed parties, or gothic fairy-tale nights — the dark mermaid energy reads beautifully in dimly-lit venues.
Fantasy & Mythology Events: Perfect for cosplay conventions, mythology-themed pub crawls, underwater or ocean-themed parties, or any event where you want to embody a sea deity with edge.
Photoshoots & Stage Performances: The ombré fabric and fin silhouette photograph beautifully — ideal for fantasy portraits, burlesque shows, or themed theatrical productions.
How to Wear It
Pair with platform heels or barefoot for a true underwater vibe. The skirt's mermaid cut is fitted through the knees — practice walking before the event. A blue-to-purple ombré wig (not included) and dark smoky eye makeup complete the sea-queen transformation.
Styling FAQs
What size should I order?
Check the size chart for bust and hip measurements — the bodice has structured cups and the skirt is fitted through the hips before flaring. If between sizes, size up for comfort.
Can I sit comfortably in this?
The mermaid-cut skirt is snug through the knees, so sitting is tricky. It's designed for standing, posing, and slow movement — not ideal for long seated dinners.
How do I care for the holographic fabric?
Hand wash in cold water, air dry flat. The metallic finish can peel if machine-washed or tumble-dried. Store hung or folded gently to avoid creasing the organza fin.
Is the wig included?
No — wig and shoes are shown for styling inspiration only. The costume includes the bodice, skirt, belt, and trident.
Care: Hand wash cold, air dry flat; avoid heat on holographic fabric.
SHIPPING & RETURNS
Returns Policy
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at sales@kidsbookweekcostumes.com.au.
If your return is accepted, we’ll send you a return form, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Shipping
We offer Flat Rates $9.8 for Registered Post or $14.8 for Express Post within Australia.