Gemfields to auction 37,555-gram emerald cluster

Africa-focused Gemfields (LON: GEM) (JSE: GML) will sell a cluster of emeralds weighing 187,775 carats (37,555 grams) through an auction, with bidding closing on November 17. The coloured gems producer said the Kafubu Cluster, discovered at its Kagem emerald mine in Zambia in...