How can I tell if my Cartier sunglasses are real?

To tell if Cartier sunglasses are real, first check for markings. Authentic Cartier sunglasses should have the brand's name in the correct font in a gold engraving along the inside of the arms next to a seven-digit serial number. You should also see the bridge measurements on any nose pieces included in the design. In addition to looking at the markings, check for any flaws or scuffs. Cartier carefully polishes all surfaces to remove imperfections on their eyewear. Find a variety of Cartier sunglasses on 1stDibs.