Who can verify if your Cartier sunglasses are authentic?

To verify if your Cartier sunglasses are authentic, you can take them to an authorized Cartier retailer or boutique, where trained staff can assess their authenticity. Additionally, you can contact Cartier's customer service for guidance and verification. Some reputable third-party appraisers and luxury accessory experts may also provide authentication services. Always check for signs such as quality of materials, engraving, and packaging to help identify authenticity.