Bharat Diamond Bourse

Bharat Diamond Bourse (BDB) is the world's largest diamond bourse (exchange) and is located in Mumbai, India. Spread over a 8.1-hectare (20-acre) plot, the complex is home to some 2,500 small and large diamond traders in addition to the Custom House, banks and other service providers who cater to the gems and jewelry trade. The complex contains 26 towers each having nine floors. The total constructed area is 190,000 m² (2,000,000 sq ft), with two basements of additional 93,000 m² (1,000,000 sq ft). The facilities at BDB comprise offices of diamond traders, four walk-in vaults, 24,500 safe deposit boxes, a 580-square-metre (6,200 sq ft) trading floor, strong rooms, lockers and customs clearance facilities with all the modern facilities required to carry on day-to-day business.

It is located in the G Block of the Bandra Kurla Complex, between the Mumbai suburbs of Bandra and Kurla. It has an inflow of some 45,000–50,000 people daily. BDB handles 98% of diamond exports from India. However the competition arose due to the inauguration of the SDB in Surat.