A gem stone plucked from the earth, the sea, or riverbed often travels across continents to cutting and polishing workshops; and those are more and more found in India. Far away, the Belgian city of Antwerp is still ruler in diamond trading. In these two places, more than a million people make a living cutting and trading diamonds. Sonja Pace, with extra reporting by Mandy Clark, narrates this segment on the gem trade. Gem stones came to Mumbai to be cut and polished.

Gem stones came to Mumbai, a busy street in India's commercial hub, to be cut and polished. Today, the majority of the world's diamonds, mostly small stones, are polished in India - in Mumbai, Gujarat, or Jaipur.

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