Dark purple chiffon gown

Long flowing chiffon gown in dark purple. Purchased as a private collection from a bridal boutique called Coan Couture in San Francisco. Bodice, shoulder straps along with the sash on the waist has ruching. Zips in the back to create a corset-like waistline. Size reads 10 but fits more like an 8. Small stain at the hem of the dress which I’m sure can be washed out. Worn only once.