"Jaipur hub" is the trade shorthand for the cluster of coloured-stone cutting workshops, dealing houses, jewellery manufacturers and trade institutions concentrated in the old city of Jaipur, Rajasthan, particularly in the Johari Bazaar, Gopalji Ka Rasta, Haldiyon Ka Rasta and M.I. Road districts. The hub is the world's principal centre for the cutting of coloured stones (emerald, ruby, sapphire, tanzanite, tourmaline, garnet and the secondary species) and one of three principal centres of the international coloured-stone trade, alongside Bangkok and Hong Kong.

For the structural and historical detail of how Jaipur came to occupy this position, see the entries Jaipur and Jaipur coloured-stone hub. For the institutional context, see the GJEPC and Jaipur Jewellery Show entries. The expression "Jaipur hub" is most often used in trade conversation to distinguish the cutting and wholesale centre from the broader city of Jaipur, and to refer collectively to the cluster of cutters, dealers and manufacturing houses that share working relationships and overlap in personnel.

Estimates of the workforce in the Jaipur coloured-stone hub run to over 200,000, with most working in small workshops of 5 to 50 cutters under contract to the major dealing houses. The hub's share of global coloured-stone cutting volume is generally placed by GJEPC and trade observers at 60 to 70 per cent of the world total, with the balance handled by Bangkok (Southeast Asian material), Hong Kong (jadeite), Idar-Oberstein (specialty carving), and a long tail of smaller centres.