Opera House, Mumbai

GJEPC is the apex body of the gem and jewellery trade, set up by the Ministry of Commerce in 1966 and headquartered at the Bharat Diamond Bourse, with its earlier office in the Diamond Plaza at Opera House.

IGI, the Antwerp institute, runs laboratories at the Bharat Diamond Bourse and at Opera House, grading diamonds and jewellery, and has grown with the lab-grown diamond trade; IGI India listed on the Mumbai exchanges in 2

The Mumbai Diamond Merchants’ Association, founded in 1952, is the association of the city’s diamond traders, originally of the Opera House and Zaveri Bazaar markets and now at the Bharat Diamond Bourse; it runs the trad

Popley, founded in 1927, is a Mumbai jewellery and watch group with its historic showroom at Hughes Road and others in the city and in Dubai; Popley Eternal is its diamond brand and Popley La Classique its watch retail.

Prasad Chambers at Opera House was, with Panchratna, the diamond trading building of Mumbai before the Bharat Diamond Bourse opened; its floors of small offices still hold diamond and gemstone traders, especially in mele

Panchratna at Opera House was the diamond trading building of Mumbai from the 1970s until the move to BKC, and remains full of diamond, coloured-stone and jewellery offices; the lanes around it are the old diamond market

Shwet Ratan Impex at Panchratna, Opera House, cuts and exports emerald, ruby and sapphire stones and beads, one of the coloured-stone firms still in the old diamond building.

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Chitra Trading Co.

Balaji Jewels at Opera House deals in ruby, spinel and other coloured stones for jewellers and exporters.