When you see that a particular store became a FarFetch partner, it means they are very professional and trustworthy. So to answer your question: The items on the site are real.
Does Farfetch sell used items?
What is FARFETCH Second Life? Our resale service allows you to clear space in your wardrobe and sell your second-hand designer handbags from the likes of Gucci, Louis Vuitton, Prada and many more, in exchange for some well-earned FARFETCH credit.26 may 2021