This is very beautiful... and flattering!
The size label is a UK12 - I'd say this is accurate. The cut is loosely fitted. Would also work on larger UK10s.
A drop waist.
Sits on the knee in length.
100% silk. Fully lined.
In fantastic worn condition. I am pretty sure I saw a small mark on the skirt at some point but honestly cannot for the life of me find it now... so if it is there, it's pretty invisible.