Gemfields Group Ltd. engages in the exploration, mining, and sale of coloured gemstones. The Company’s segments include Kagem Mining Limited (Kagem), Montepuez Ruby Mining Limitada (MRM), Development assets, Corporate and Other. The Kagem segment includes the Company's emerald and beryl mine, in Zambia, Africa. The MRM segment includes its ruby and corundum mines in Mozambique, Africa. The Development assets segment consists of the Company's exploration and evaluation assets accounted for under IFRS 6, in respect of exploration activities in Africa, including Megaruma Mining Limitada (MML), Eastern Ruby Mining Limitada (ERM), Campos de Joia Limitada (CDJ), Nairoto Resources Lda (Nairoto or NRL), and the Company’s projects in Ethiopia and Madagascar. The Corporate segment comprises sales of cut and polished gemstones, marketing, and technical and administrative services is based in the United Kingdom. The Other segment includes sales and marketing offices.