Tiffany's is a well known jewelry company that sells sterling silver accessories for men, women, and children. They are mostly recognized for their blue and white boxes.
The box that something comes in can mean just as much as the gift inside of it.
The most recognized tiffany's jewelry is the chain with "please belong to tiffany's written on it"
The official Tiffany's website has everything on it that they sell.
There are also many fake companies that sell jewelry that is made off to be Tiffany's but it really is not. Here is a site that will help you tell the difference between the two: Real vs Fake