If you travel to New York, it is impossible not to think of Tiffany & Co, the legendary jewellery shop on 5th Avenue. Popularized by the movie Breakfast at Tiffany’s, this six-storey establishment sells all kinds of jewellery, some at a good price. On the same street, there is also another of the most popular stores: Van Cleef & Arpels. There are other less luxurious establishments with more affordable jewellery such as Fragments, Ten Thousand Things or Jaded. If what you are looking for are diamonds, then New York is the ideal destination. 47th Street is where most of the businesses dedicated to buying and selling diamonds are concentrated.