De Beers, the world’s biggest diamond producer, to cut output from 34 to 30 million carats this year as demand drops. Photograph: Reuters.

De Beers, the world’s biggest diamond producer, cut its output target for the year as demand for the gems weakens and prices fell for a second quarter(...)

A woman displays a 100.20-carat diamond ring at a pre-auction viewing at Sotheby’s. The diamond sold for $22.1 million in New York yesterday. 0:42

An eye-popping, 100-carat diamond, the highlight of a magnificent jewels sale in New York on Tuesday, sold for $22.1 million, Sotheby’s auction house (...)

Dermot Desmond will receive a fee of 3 per cent of the funds raised for underwriting the issue. Photograph: Cyril Byrne/The Irish Times

Dermot Desmond is to underwrite a $95 million Canadian dollars (€66 million) fundraising by Mountain Province Diamonds, of which he owns a stake of ab(...)

Dermot Desmond: will have a second big bet on diamond exploration in the Arctic

The financier Dermot Desmond has indicated he will back a $20 million Canadian dollars (€14m) fundraising by Kennady Diamonds, which is searching for(...)

Industrial diamonds manufacturer Element Six has announced plans to create 40 new jobs as part of a major expansion at its Shannon plant.

Industrial diamonds manufacturer Element Six has announced plans to create 40 new jobs as part of a major expansion at its Shannon plant.The company, (...)

Dermot Desmond: also invested $3.5 million this week in Kennedy Diamonds.

Dermot Desmond, the billionaire financier, has invested a further $25 million Canadian dollars (€17.7 million) in Mountain Province Diamonds (MPD) (...)

Job applicants talk to recruiters at the Greenhouse and SproutHouse company booths at the CannaSearch cannabis industry job fair in downtown Denver September 16, 2014. The job fair featured over 20 companies seeking to fill over 500 positions in the cannabis industry. Photograph: Rick Wilking/Reuters

Queues, desks, pens, application forms: Canna- Search, which took place in the US city of Denver this week, is just like any other job fair, save for (...)

Dermot Desmond: bought another stake for about €3.5m in Canadian-listed firm Mountain Province Diamonds. Photograph: Cyril Byrne

Diamonds really are a billionaire’s best friend.Dermot Desmond has in recent weeks bought another one million shares for about €3.5 million in the Can(...)

Dermot Desmond offloaded two million shares in Canadian-listed Mountain Province Diamonds. Photograph: Dara Mac Dónaill

Dermot Desmond has sold, for about €7 million, part of his stake in a company that co-owns one of the largest diamond mines in the world. The b(...)

A Forevermark Encodia diamond bracelet produced by De Beers. The company plans to raise diamond prices 5 per cent every year. Photo: Bloomberg

De Beers plans to raise diamond prices 5 per cent every year, betting demand will help the world’s biggest miner of the precious stones meet parent An(...)