so funny - spotted!!
the black dress on the left is something I assisted designing at naeem khan,
and the black dress on the right is another from marchesa.
they were from different seasons but it's funny that they are practically hung next to each other:
found and cropped this picture from one of marchesa's facebook images
picture taken at bergdorf goodman on 5th ave.
go buy now!! and get one for me too =P