After spotting one of these bags 'in the wild' and remarking upon its beauty and splendour, I thought I'd look into how one might acquire such an item. And here it is: it's the hobo style from Mulberry's Daria range, made up in luxurious purple ostrich leather.
The hobo is not a common evening-wear style, and what's great about this bag is that it can be comfortably carried during the day as well, essentially doubling its value. Loving the giant-scale logo on the front, too...
£495 at Selfridges