The Sienna Strapless Gown is a fitted column silhouette, defined by the hand draping detail across the bust, waist and hips designed to flatter the female form. This style is a strapless silhouette with a rounded square neckline, its internal construction features light boning to enhance a natural hourglass shape.

This silhouette has little stretch through the bust and waist, however it has light stretch through the hips. We recommend taking your bust measurement to indicate your size, if you are in-between sizes we recommend sizing down.

This is a form fitting silhouette.

Model is 5'10 and wears a RG 1 = US 4 = AU/UK 8
Please note our US sizes 8-14 run slightly bigger, we recommend sizing down if you are in-between sizes.

• Internal bodice and corset.
• Internal elastic waist tape.
• Little stretch through the waist and bust.
• Garment has stretch through the hips.
• Invisible zip.
• Back split.
• Slight sheen to fabric.
• Hand draped neckline.
• Strapless square neckline.

Stretch Taffeta
45% Nylon 50% Polyester 5% Elastane

Dry Clean Only
See sewn in label for further care instructions

Standard Shipping

  • Metropolitan Areas- 2-5 business days
  • Regional Areas- 5-7 business days 

Express Shipping

  • Australia 1-3 days business days 
  • New Zealand 3-5 business days

Same Day Delivery - delivery fee starts from $15

  • Order before 2pm and receive by 6pm the same day
  • Sydney Metro 
  • Melbourne Metro

Returns
Rachel Gilbert accepts returns for online orders on all full price items within 7 days of receiving your order. Items returned outside of this period will not be accepted unless deemed faulty. 

Please ensure that before initiating your return that your return meets the following criteria (unless deemed faulty):

  • Order has been received within 7 days
  • Item is in new and unused condition
  • Item has all original tags attached
  • We do not accept returns on sale items. All sale items are final sale
Same day delivery available in Sydney & Melbourne metro. Select at checkout. Order before 2pm.
Complimentary standard shipping on all orders.

Pay Later Options

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Repay in 4 instalments fortnightly, interest-free.

The maximum purchase amount is $1,200.

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Repay in 4 instalments fortnightly, interest-free.

The maximum purchase amount is $1,200.

Learn more about Klarna.

Size chart

Size conversion

Runs true to size, we recommend taking your usual size.

Model is 5'10 and wears a Rachel Gilbert Size 1 [AU/UK 8].

Size:
Size (RG) Size (AU) Size (US) Size (EU) Size (FR) Size (IT) Size (UK) Bust (CM) Waist (CM) Hips (CM)
XXS 00 4 0 30 32 36 4 79 58 86
XS 0 6 2 32 34 38 6 84 63 91
S 1 8 4 34 36 40 8 89 68 96
M 2 10 6 36 38 42 10 94 73 101
L 3 12 8 38 40 44 12 99 78 106
XL 4 14 10 40 42 46 14 104 83 111
XXL 5 16 12 42 44 48 16 109 88 116
XXXL 6 18 14 44 46 50 18 114 93 121