Always start with the quality of construction and materials. Irregularities, poor craftsmanship and low-grade materials are telltale signs of a fake. From there, check the following: 1.  B U C K L E S  Roger Vivier construction applies buckles to the surface of the shoe from the underside using metal hardware pins. Buckles affixed using glue or other adhesive is FAKE.  2.  L O...