Full coverage: Mining

Diamonds are from the deep Earth. So how do they get to the surface? It is a question that niggled at Irish scientist Dr Tom Gernon for two decades before he arrived at an answer that could be invaluable to the mining industry.

Dermot Desmond-backed Mountain Province pursued a dream to build one of the world's biggest diamond mines deep in the Canadian tundra. Once valued at €950m, Mountain Province is worth €52m and its bonds are trading at a discount to face value. Just what has happened? And what happens next?