Strapless Satin Mermaid Evening Gown with Keyhole Cutout by tangjianjun

Royal Blue Strapless Satin Mermaid Evening Gown With Keyhole Cutout

Blue

$169.00 USD

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Royal Blue Strapless Satin Mermaid Evening Gown With Keyhole Cutout

$169.00 USD

Shipping calculated at checkout.

Make a statement at every formal affair with the Royal Blue Strapless Satin Mermaid Evening Gown. Crafted from premium, lustrous satin, this gown drapes with a radiant sheen that catches the light as you move, ensuring you stand out from the moment you step into the room.

The silhouette is designed to flatter and empower. A strapless neckline pairs with a sculpted, twisted bodice to create a refined, architectural look, while the ruched waist defines the narrowest part of your frame. The mermaid cut hugs through the hips and thighs, then flares at the hem to create a dramatic, floor-skimming sweep that exudes elegance on any red carpet or black-tie aisle.

Functional drama meets modern ease with a high side slit that offers effortless movement and a subtle hint of allure, without compromising comfort or sophistication. A sleek, floor-length train completes the silhouette, adding a touch of couture polish that’s perfect for weddings, proms, galas, and formal dinners.

Why this gown stands apart

What makes this royal blue satin gown unique is the combination of a contemporary cropped, twisted bodice detail and a classic mermaid shape, all in a single, color-saturated satin that drapes with a luxurious weight. The construction is tailored to deliver a flawless fit and lasting comfort through long events—so you can focus on your moment, not your wardrobe worries.

Ideal occasions

Red carpet appearances, black-tie galas, wedding guests seeking a show-stopping look, proms aiming for timeless glamour, and formal dinners where you want to command attention with poise and confidence.

Styling and care tips

Pair with a statement necklace or chandelier earrings to echo the gown’s bold satin sheen.
Opt for a sleek updo to showcase the strapless neckline and sculpted bodice.
For maintenance, store on a padded hanger and keep away from direct heat to preserve the satin’s luster.

Sizes and fit are crafted to provide a streamlined, figure-enhancing look that translates beautifully in formal photography and live attendance alike. If you’re searching for a dress in the $150-$200 range that delivers true luxury without compromise, this royal blue satin mermaid gown is designed to elevate your formal wardrobe for any occasion in the Apparel & Accessories > Clothing > Dresses category.

Return Policy

Please keep in mind that all dresses are uniquely made to order to keep costs low for our customers. We also understand that colors on your computer screen can be a little different to how they appear in person. For these reasons, we encourage you to order a Swatch (free shipping) to help you decide.

Nightbubo will issue a full refund including shipping for any damaged, defective, or mis-shipped items. If your item arrives damaged or defective, please reach out to Contact Us directly for assistance with processing your return.

FOR ALL STANDARD SIZE DRESSES, SHOES, AND ACCESSORIES:

Nightbubo will issue a full refund of the cost of the returned product if you are not satisfied with your item(s). Contact our Customer Service to initiate the return process within 7 days upon receiving your item(s). The item must be returned in its original condition (if eligible per the return policy).

Please note:
* The item must be unworn, unwashed, unaltered, undamaged and with the original tags attached. We cannot process the return of any faulty item.
* Original shipping fee & return shipping fee will not be refunded.
* As all items (including standard size) are made-to-order, we cannot afford to accept the ‘buy-many-keep-one’ purchase. Our customer service team may cancel an order believed to have been made with that intention.

FOR ALL CUSTOM SIZE DRESSES:

At Nightbubo, we understand that you may want the dress to ideal fit! To help you out, we offer custom sizing on most of our dresses. Custom sizing takes the same amount of time to make and ship to you!

A few things to remember about custom dresses:

Custom dresses are made specifically to the measurements you provide (bust, waist, hips, height, and hollow-to-floor). That means no one else will be able to wear that dress once it's made. Because of this, we are unable to accept any returns on custom dresses. Please double check your measurements and color choice before ordering.

We understand that sometimes small alterations are needed, we offer limited alterations reimbursement for only our custom sizes. Simply send us a picture of your receipt from the tailor and your order number and we'll do the rest! Yes, it really is that easy!

EXCHANGE POLICY

We do not offer an exchange service for any products at this time. Because all items are made-to-order, we do not have ready-made dresses or products that can be shipped in exchange for your returned items. You will need to return unwanted items (if eligible per the return policy), and then place a new order for the replacement items. All new orders are subject to the current production period.

HOW TO RETURN

1. Submit a return request at Contact Us to Customer Service within 7 days of receiving your order. Please include the reason for return and photographs for verification.

2. Once we have approved your request, you will be sent a return form which needs to be included with your return. Please send your item(s) using local post within 7 days from receiving the return form.

3. When we receive the returned package, the item(s) will be inspected to ensure it is in the original condition and has the issues stated in the return request.

4. Once confirmed, the refund will be credited back to the original payment method within 10-15 days (the processing time depends on your payment method and bank).

Please note:
* We reserve the right to refuse the return if received in an unacceptable condition.
* We cannot process any products that are returned without our prior knowledge.
* We are not liable for return item(s) that are lost or damaged, please keep the receipt with tracking information.

CANCELLATION POLICY

All our items are made-to-order, including standard size items, with this in mind, please refer to our cancellation policy below:

Unpaid orders are automatically cancelled after 5 days.
Cancel order within 24 hours of payment for a full refund.
Cancel order 24–72 hours after payment: 80% refund + shipping fee.
Cancel order 72-120 hours after payment: 70% refund + shipping fee.
Cancel order > 120 hours after payment: 60% refund + shipping fee.
Once your order is shipped, it cannot be cancelled.

If you would like to cancel your order, please login to My Orders, select the order you need help with, and request cancellation.

Ship and Deliver Time

Production And Delivery Time
       We will handle your order within 24 hours and inform our tailors to start custom making your dresses. So if you would like to cancel this order, please contact us within 48 hours. We may will charge you a number of fees for cancellation over 48 hours because the fabric and other material prepared for your dress have already been cut and wasted.Generally, the processing time may vary according to the complexity of different dresses. The required time is usually as followings:Wedding dresses: 1-2 weeks.Bridesmaid dresses: 2-8 days.Prom dresses:2-8 days.Mother of the bride dresses: 2-8 days.The delivery time of accessories and swatches is up to our inventory. They are able to be shipped within 24 hours if we have sufficient stock.Please read the important information above carefully to better understand our work. Therefore, we sincerely suggest you choose a reasonable delivery date and inform us of your ideal delivery date by responding to our confirmation email. We will quickly start to handle your order if all the information is clearly confirmed.Please notice that the shipping address can not be changed if your package has been sent out already. Therefore if you want to change the shipping address, please inform us via email as soon as possible. If you do have to change the address, we can help you contact the express company to make a revise, but it may cost extra fees. And customer should be responsible for the extra fees. We will inform you of the tracking number soon after delivery. You can check and track your order on their official website.Note: The colour of the products displayed on your computer or mobile-phone may be slightly different from the actual colour. This is the common problem of different display equipment. Therefore if you want to order the bridesmaid dresses in bulk, we strongly recommend you to order our swatches and fabric samples first. You can then place your bulk order after you are sure about the colour of our products.

You can choose your preferable Shipping Method:

Expedited Shipping
This shipping method is the fastest available. Delivery times are between 2-6 days to all major destinations.Expedited shipping fee is calculated based on the weight of your order, starting from US$ 20.99.

Standard Shipping
Standard shipping takes a bit longer than expedited shipping but costs less. Delivery times are between 3-8 days to all major destinations. Standard shipping fee is calculated based on the weight of your order, starting from US$ 14.99.

Super Saving Shipping   

Super saving shipping is the most cost-saving method. But it will take 10-30 days to all major destinations. Super saver shipping fee is calculated based on the weight of your order, starting from US$ 5.

Before we can ship your order, Nightbubo.com has to prepare your products, perform strict quality-control tests and package items carefully. The above delivery estimates do not include order processing time. 

Size Chart

This is a measurement of the fullest part of your bust or body circumference at the bust. It is a body measurement which measures the circumference of a woman's torso at the level of the breasts.

Wrap the tape around the fullest part of your bust and center the tape on your back so it's levelled all the way around.

*Tips:
This isn't your bra size!
Your arms should be relaxed, and down at your sides.
Wear the bra you're planning to wear with your dress when taking this.

Note:

Have trouble with choosing size or Additional Requirements on size? Contact us.

Dress Standard Size Chart

Bust Waist Hip Standard Size Chart
US Size	0		2		4		6		8		10		12		14		16		18		20		22		24		26		28		30
EU Size	32		34		36		38		40		42		44		46		48		50		52		54		56		58		60		62
UK Size	4		6		8		10		12		14		16		18		20		22		24		26		28		30		32		34
	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm
Bust	32	81	33	84	34	86	35	89	36	91	37 ½	94	39	99	41	104	43 ¼	109	45 ½	115	47 ¾	120	50	127	53	135	56	142	59	150	63	160
Waist	25 ½	64	26 ½	67	27 ½	69	28 ½	72	29 ½	74	31	79	32 ½	82	34 ¾	87	37 ¼	94	39 ¾	100	42 ¼	107	44 ¾	113	48	122	51 ¼	130	54 ½	138	58 ¾	148
Hips	35 ½	89	36 ½	92	37 ½	94	38 ½	97	39 ½	100	41	104	42 ½	107	44 ½	112	46 ¾	118	49	124	51 ¼	130	53 ½	135	56 ½	143	59 ½	150	62 ½	158	66 ½	168

Dress Length Chart (Hollow To Hem)
US Size	0		2		4		6		8		10		12		14		16		18		20		22		24		26		28		30
EU Size	32		34		36		38		40		42		44		46		48		50		52		54		56		58		60		62
US Size	4		6		8		10		12		14		16		18		20		22		24		26		28		30		32		34
	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm	inch	cm
Mini/Short	28	71	29	74	29	74	30	76	30	76	30	76	30	76	31	79	31	79	32	81	32	81	32	81	33	84	33	84	33	84	33	84
Knee Length	37	94	38	97	38	97	38	97	38	97	39	99	39	99	39	99	39	99	40	102	40	102	40	102	41	104	41	104	41	104	41	104
Tea Length	44	112	46	117	46	117	46	117	46	117	47	119	47	119	48	122	48	122	48	122	48	122	48	122	48	122	48	122	48	122	48	122
Ankle Length	52	132	53	135	53	135	54	137	54	137	54	137	54	137	55	140	55	140	56	142	56	142	56	142	56	142	56	142	56	142	56	142
Floor Length	57	145	58	147	58	147	59	150	59	150	60	152	60	152	61	155	61	155	61	155	61	155	61	155	61	155	61	155	61	155	61	155

Bust

Waist

Hips

Hollow to Hem

Back Shoulder Width

Sleeve Length

Armscye

Arm Circumference

This is a measurement of the fullest part of your bust or body circumference at the bust. It is a body measurement which measures the circumference of a woman's torso at the level of the breasts.

Wrap the tape around the fullest part of your bust and center the tape on your back so it's levelled all the way around.

*Tips:
This isn't your bra size!
Your arms should be relaxed, and down at your sides.
Wear the bra you're planning to wear with your dress when taking this.

Note:

Some styles have ease added for your comfort. If you are in between sizes, it is suggested to call and speak to a stylist or order the dress in custom size.The Hollow to Hem measurement for standard sized floor length dresses includes an extra 2 inches to fit high heels.
Have trouble with choosing size or Additional Requirements on size? Contact us.

Dress Standard Size Chart

in

cm

Bust Waist Hip Standard Size Chart (inch)
US Size	UK Size	EU Size	Bust	Waist	Hips
0	4	32	32	25 ½	35 ½
2	6	34	33	26 ½	36 ½
4	8	36	34	27 ½	37 ½
6	10	38	35	28 ½	38 ½
8	12	40	36	29 ½	39 ½
10	14	42	37 ½	31	41
12	16	44	39	32 ½	42 ½
14	18	46	41	34 ¾	44 ½
16	20	48	43 ¼	37 ¼	46 ¾
18	22	50	45 ½	39 ¾	49
20	24	52	47 ¾	42 ¼	51 ¼
22	26	54	50	44 ¾	53 ½
24	28	56	53	48	56 ½
26	30	58	56	51 ¼	59 ½
28	32	60	59	54 ½	62 ½
30	34	62	63	58 ¾	66 ½

Dress Length Chart (Hollow To Hem) inch
US Size	UK Size	EU Size	Mini/Short	Knee Length	Tea Length	Ankle Length	Floor Length
0	4	32	28	37	44	52	57
2	6	34	29	38	46	53	58
4	8	36	29	38	46	53	58
6	10	38	30	38	46	54	59
8	12	40	30	38	46	54	59
10	14	42	30	39	47	54	60
12	16	44	30	39	47	54	60
14	18	46	31	39	48	55	61
16	20	48	31	39	48	55	61
18	22	50	32	40	48	56	61
20	24	52	32	40	48	56	61
22	26	54	32	40	48	56	61
24	28	56	33	41	48	56	61
26	30	58	33	41	48	56	61
28	32	60	33	41	48	56	61
30	34	62	33	41	48	56	61

Bust Waist Hip Standard Size Chart (cm)
US Size	UK Size	EU Size	Bust	Waist	Hips
0	4	32	81	64	89
2	6	34	84	67	92
4	8	36	86	69	94
6	10	38	89	72	97
8	12	40	91	74	100
10	14	42	94	79	104
12	16	44	99	82	107
14	18	46	104	87	112
16	20	48	109	94	118
18	22	50	115	100	124
20	24	52	120	107	130
22	26	54	127	113	135
24	28	56	135	122	143
26	30	58	142	130	150
28	32	60	150	138	158
30	34	62	160	148	168

Dress Length Chart (Hollow To Hem) cm
US Size	UK Size	EU Size	Mini/Short	Knee Length	Tea Length	Ankle Length	Floor Length
0	4	32	71	94	112	132	145
2	6	34	74	97	117	135	147
4	8	36	74	97	117	135	147
6	10	38	76	97	117	137	150
8	12	40	76	97	117	137	150
10	14	42	76	99	119	137	152
12	16	44	76	99	119	137	152
14	18	46	79	99	122	140	155
16	20	48	79	99	122	140	155
18	22	50	81	102	122	142	155
20	24	52	81	102	122	142	155
22	26	54	81	102	122	142	155
24	28	56	84	104	122	142	155
26	30	58	84	104	122	142	155
28	32	60	84	104	122	142	155
30	34	62	84	104	122	142	155

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