St John Open Front Waterfall Cardigan

Care/fabric tag is fading..... Waterfall cascading drape at front, St John goldtone logo at back, front is longer than back Condition - Pre-owned Size - M? (Petite) Armpit to armpit - 18" Length - shortest - 23" longest - 33" In excellent pre-owned condition except for the missing size tag and fading care/fabric tag. This could be a Medium but to ensure proper fit pls refer to the measurements in the description