Why do jewelry stores cluster together in the same place? Go to Bond Street in London, and you’ll find the likes of Cartier, De Beers, and Tiffany & Co., all vying for your attention. Head down to Hatton Garden in London and you’ll find a lineup of jewelry stores complete with an eager jewelry salesperson trying to entice you in. However, Bond Street and Hatton Garden, as well as the Diamond District in New York, are more than a geographic location — they are in fact brands.
