Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. The four Cs — colour, cut, clarity and carat, a system invented by DeBeers in 1939 — guide the pricing of ...

We're going to check out a few of the best picks from our screener tool. Overview: Emerald Resources NL focuses on the exploration and development of mineral reserves in Cambodia and Australia, with a ...

London-listed Gem Resources has sold 8 130 ct in its first sales tender for emeralds produced from the Gravelotte mine, in South Africa’s Limpopo province. Having generated $43 000 from the tender of ...

The international gem trade can be a shady business. In a quiet corner of a busy London pub, a trader, who asked to remain anonymous, tells C&EN about passing off synthetic gems, made in a ...