Oliver Peoples Clifton - James Spader - The Blacklist
There have been many claims made on the ID of these glasses, but the correct model is the Oliver Peoples Clifton.
The glasses can be spotted in many episodes and promotional photos. The Oliver Peoples Clifton glasses worn by Spader have a gold frame, with unique bulge at the hinges, and the smooth Oliver Peoples arm ends. Also the nose pad details match this ID.
Note that James Spader has sometimes been spotted with a different model sunglasses, with a similar gold frame but with tortoise sides on the arms (no ID yet).
The Blacklist follows Raymond "Red" Reddington (played James Spader), a former U.S. Navy officer turned high-profile criminal who voluntarily surrenders to the FBI after eluding capture for decades.
In the same series, he has been wearing Rolex GMT-Master watches.
Reference: Oliver Peoples Clifton OV1150S 503585