Cartier will always remain one of the biggest leaders in the vintage eyewear game. Their models have remained classic and edgy throughout the years. Their use of quality materials and the comfort of their frames is what made them famous. Their frames are often made of real gold, which distinguishes the brand from others. Lady Gaga was spotted wearing one of their most popular frames, the Diabolos. They are also known as one of her favourite sunglasses! Their success is due to the brand's high quality material and the prestige that Cartier will forever carry.