Ten unmounted square emerald-cut Kashmir sapphires weighing between 1.55 - 3.55 carats fetched $912,000, comfortably above its high estimate. The second is a ruby and diamond brooch by René ...

To reduce costs, Gemfields is suspending all mining at Kagem Mining Ltd, the emerald mine in Zambia in which it owns 75% interest, for a period expected to be up six months. Kagem will focus on ...