Well, to spot the fake triffany sunglasses, there are many tips which you can follow. First, as we know that they are founded in New York in 1837 as a stationary goods store. You can know it is a brand from america. So you can check the label which can be written with "made in america ". Then, you can also Look for the "Tiffany & Co." emboss on the piece of sunglasses that you have chosen for purchase. Finally, this is the most effective way you can have a try. You can just click into the official website of Tiffany & Co., pull out the specific model image from its item range and make an apple to apple comparing of the two. In this way, it is easy to distinguish if they are authentic or not. By the way, you should know that Tiffany is very famous for their high quality and craftsmanship in any of the products. So maybe you can buy ones.