((INTRO:)) [[Mosibudi Jo Mathole and Khomotso Ramodipa are rare gems in the male-dominated diamond industry. The South African sisters run one of the few women-owned diamond polishing businesses in the world. And, despite the slumping global market for diamonds, and a shrinking industry in South Africa, they've managed to keep shining and developing new female talent. Marize de Klerk reports from Bedfordview, South Africa.

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