Iridescent Opal Cowl Neck Sequin Cutout Mermaid Prom Dress
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Sizing Guide
| US Size | Bust(in) | Waist(in) | Hips(in) |
|---|---|---|---|
| 0 | 31.5 | 24.5 | 34.75 |
| 2 | 32.5 | 25.5 | 35.75 |
| 4 | 33.5 | 26.5 | 36.75 |
| 6 | 34.5 | 27.5 | 37.75 |
| 8 | 35.5 | 28.5 | 38.75 |
| 10 | 36.5 | 29.5 | 39.75 |
| 12 | 38.0 | 31.0 | 41.25 |
| 14 | 39.5 | 32.5 | 42.75 |
| 16 | 41.0 | 34.0 | 44.25 |
| 16W | 43.0 | 36.25 | 45.5 |
| 18W | 45.0 | 38.5 | 47.5 |
| 20W | 47.0 | 40.75 | 49.5 |
| 22W | 49.0 | 43.0 | 51.5 |
| 24W | 51.0 | 45.25 | 53.5 |
| 26W | 53.0 | 47.5 | 55.5 |
| US Size | Bust(cm) | Waist(cm) | Hips(cm) |
|---|---|---|---|
| 0 | 80 | 62 | 88 |
| 2 | 83 | 65 | 91 |
| 4 | 85 | 67 | 93 |
| 6 | 88 | 70 | 96 |
| 8 | 90 | 72 | 98 |
| 10 | 93 | 75 | 101 |
| 12 | 97 | 79 | 105 |
| 14 | 100 | 83 | 109 |
| 16 | 104 | 86 | 112 |
| 16W | 109 | 92 | 116 |
| 18W | 114 | 98 | 121 |
| 20W | 119 | 104 | 126 |
| 22W | 124 | 109 | 131 |
| 24W | 130 | 115 | 136 |
| 26W | 135 | 121 | 141 |
Delivery Time & Shipping
♦ Total Delivery Time = Production Time + Shipping Time
Production time: 3-5 Business Days( Due to the peak season, there are more orders and the processing time is longer,you can place your order in advance.)
Production time depends on the complexity of the dress's craftsmanship.
Shipping Time:
- Estimated Arrival Standard Shipping: 6-8 business Days (8‑10 calendar‑days).
- Expedited Shipping Arrival Time:3-5 business Days ( 5‑7 calendar‑days).
♦ Total Delivery Time = Production Time + Shipping Time.
If there are major holidays, the delivery time of all orders may be delayed. If time is urgent, you can contact us.
Return Policy
Standard‑size items may be returned within 30 days after receipt of goods. All returnable items must be unwashed, free of stains, kept in original condition, and with clothing tags intact
Free Shipping Eligibility
US:
🚚 Free shipping across most U.S. states. Hawaii, Alaska and Puerto Rico are excluded. order $49+.
Iridescent Opal Cowl Neck Sequin Cutout Mermaid Prom Dress
An opal-toned sequin dress that shifts between aqua, lavender, and champagne with every step. A draped cowl neckline flows into a sheer mesh cutout at the waist, while a crisscross open back adds an unexpected twist to the silhouette. The fitted mermaid shape skims the body before releasing into a dramatic, asymmetrical ruffled hem. Made in sizes from US 2 up to plus size 26W and offered in multiple colors, it's a showstopping pick for prom and every formal occasion. Browse more styles in our prom dresses collection.
Product Silhouette
A true mermaid silhouette that skims the body through the bust, waist, and hip before releasing into a dramatic, asymmetrical ruffled flare below the knee. The fitted shape highlights every curve, while the high-low hem adds movement with every step. Want more statement styles? See our prom dresses collection.
Material
Hand-sewn sequins in a diamond pattern over soft sheer mesh, shifting between aqua, lavender, and champagne with every angle of light. The dress is fully lined in a double-layer construction with clean, hidden interior seams, so it fits smoothly against the body.
Occasions
- Prom and formal school dances
- Black-tie galas and evening events
- Pageants and red-carpet moments
- Winter formals and holiday parties
- Looking for the newest arrivals? See our 2026 and 2027 prom dresses
Care Instruction
- Do not machine wash — the sequins can loosen and shed with agitation
- Spot clean gently with a damp cloth as needed
- Professional dry clean recommended for a full clean
- Do not bleach, wring, or tumble dry
- Hang on a padded hanger between wears
Why Choose This Dress?
This gown is built for the moment you walk into the room. The iridescent diamond-pattern sequin shifts color with every angle of light, while the sheer mesh cutout at the waist and crisscross open back add a modern, body-conscious edge without sacrificing coverage where it counts. Unlike a straight mermaid hem, the asymmetrical ruffle gives you movement and drama on the dance floor — it photographs beautifully from every direction, front, back, and in motion.
Details We Love
- Shimmering iridescent diamond-pattern sequin that shifts tone in the light
- Draped cowl neckline with delicate spaghetti straps
- Sheer mesh cutout at the waist for a modern, body-conscious line
- Crisscross open back with adjustable straps
- Fitted mermaid silhouette with a dramatic asymmetrical ruffled hem
- Fully lined, double-layer construction with clean, hidden interior seams
- Available in US2-US16 and curve-friendly 16W-26W; see our size chart to find your fit
Size and Fit
Available in sizes US2-US16 and 16W-26W. The fitted bodice and waist hug the body closely before releasing into the mermaid flare, so we recommend sizing according to your natural measurements rather than your usual ready-to-wear size. Please reference our detailed size chart for exact bust, waist and hip measurements before ordering.
Styling Tip
Let the iridescent sequin be the statement — keep jewelry minimal with delicate stud earrings. Pair with clear or nude strappy heels so nothing competes with the shimmer, and a sleek low bun or half-up style to show off the open back.
More Prom Looks
Style It Your Way
AI-generated styling concepts across sizes US 2 to 26W. These are illustrative, not customer photos or verified fit photos. Check the size chart for your measurements.
Frequently Asked Questions
How long will this iridescent sequin mermaid prom dress ship to the United States?
Production takes 3-5 business days. Standard shipping takes 6-8 business days (about 8-10 calendar days), and expedited shipping takes 3-5 business days (about 5-7 calendar days). Major holidays may lead to delivery delays, so order early for your prom date.
Is free shipping offered for this cutout dress in the USA?
Free shipping applies for most U.S. states. Hawaii, Alaska and Puerto Rico are excluded from the free-shipping offer. See our shipping policy for details.
Can I return this sequin mermaid prom dress?
Standard-size items can be returned within 30 days after you receive your package. Items must be unwashed, free of stains, kept in original condition with no sequin loss, and have the clothing tags intact. See our return and refund policy or visit our FAQ page for more help.
Does this dress run true to US formal dress sizes, and is it available in plus sizes?
This dress follows US women's formal sizing from US 2-US 16, and it is also available in plus sizes 16W-26W, so the same design is offered across the full size range. We strongly recommend measuring your bust, waist and hips in inches and comparing them with our size chart, rather than relying only on your everyday casual-clothing size.
Is this dress good for prom?
Yes. The iridescent sequin shimmer, cutout waist, and dramatic ruffled mermaid hem make it one of our most eye-catching prom styles, and it also works beautifully for black-tie events and galas.
Can I machine wash this dress?
No. This dress should not be machine washed, as the sequins can loosen or shed with agitation. We recommend spot cleaning gently with a damp cloth, or taking it to a professional dry cleaner for a full clean.
Does the cutout waist show too much skin?
The sheer mesh cutout at the waist is lined in nude mesh, so it reveals the silhouette without being overly exposing — it reads as a design detail rather than a bare cutout.
Does this dress have a lining?
Yes. The dress is fully lined with a double-layer construction, so all seams are finished on the inside and nothing shows through from the outside.
What shoes pair well with this dress?
Clear, nude, or soft metallic strappy heels complement the iridescent sequin shimmer beautifully without competing with it.
XALPHEOR — Dresses for Unforgettable Moments.