The word 'diamond' (in hebrew and english) is all over the place. It appears mostly in two-word compounds such as: diamond exchange, diamond culture, diamond jewelry, diamond mines, diamond center, etc..
I happened to be in the area this week; it was not during the busy hours (it was around 5:30 PM). The diamond museum was closed and so were part of the jewelry stores, eateries, banks, insurance companies. The places that were still open, seemed to be less active. I entered the Office Depot store to buy a certain item, and afterwards I decided to take a walk around, as there was a cool , pleasant breeze blowing outside.
towers within the diamond district
"Harry Openheimer" Diamond Museum
The Diamond Exchange complex with its commercial offices and halls (where its members are engaged in trading, cutting, polishing, marketing of diamonds), gemological laboratories, museum, banking and postal services - is considered the world largest diamond exchange. Its rivals to the title are, I think, the one in Mumbay (India) and the one in Antwerpen(Belgium).