I was someone wearing it in Covent Garden a few weeks ago. It was emerald green and only had embroidery/embellishment on the back, almost oriental in style with lots of gold.
The label said was black and said I think CL on it on white or gold with a vine/floral design (she had it hung on a chair).
That's all I remember but it was so lovely. ChatGPT is being most unhelpful.