Beautiful colorful sleeveless blouse

My mom wore once and the tag was itchy so she cut it off. She said it’s from a speciality store and it was very expensive but she doesn’t remember the brand!! She says the size is like 1-2x max she thinks it said one size fits all. Gorgeous top and the material is amazing! If it would fit me I would keep. Zipper isn’t obviously used much so it’s kind of hard to zip but it works just slower. Open to many offers