This is a lovely dress and the fabric is perfect Cynthia Rowley Stretch Velvet Bell Sleeve W/Emb Dress Size 8 US /Aus 12 BNWT.

Measuring laying flat.

Underarm to underarm 44cm

Waist seam to seam 38cm

Length 90cm

The last photo shows a similar Dress just to show how it looks on.

Please check measurements for sizing.