Farfetch

Farfetch aggregates inventory from 700+ boutiques globally, offering one-of-a-kind luxury pieces with a 100% authentication guarantee. Its private client tier provides personalized service, and 95% of shipments arrive within 5 days. It is the safest place for high-end goods, outperforming #7 Vinted in authentication rigor, though its average item price of $1,200 is 50% higher than #5 ASOS’s top-tier offerings.