A diamond district is an area where the cutting, polishing, and trade of diamonds and other gems takes place. There are a number of these districts around the world, including:

Antwerp diamond district, Belgium

Bharat Diamond Bourse, Mumbai, India

Diamond Exchange District, Israel

Hatton Garden, London, England

Jewellery Quarter, Birmingham, England

Diamond District, Manhattan, New York, United States

Jewelers' Row, Philadelphia, United States

Jewelry District (Los Angeles), United States

Jewelry District (Providence), Rhode Island, United States

Jewelers' Row, Chicago, United States