Diamond Top Stories

South African white diamond could fetch more than $20 million on auction

The largest white diamond ever to come to auction will hit the block at Christie’s in Geneva on May 11.

Bloomberg News | March 25, 2022 | 8:46 am

Tiffany joins Signet in banning new diamonds mined in Russia

The companies’ bans apply only to newly mined gems, meaning…

Bloomberg News | March 25, 2022 | 8:31 am

Russia diamond supply curb may benefit Zimbabwe miner’s gems

State-owned ZCDC will resume diamond auctions in April after an…

Bloomberg News | March 22, 2022 | 8:19 am

Signet shocks diamond trade with refusal to buy Russian gems

The move by the largest diamond retailer in the industry’s…

Bloomberg News | March 17, 2022 | 8:34 am

International trade data on emerald, ruby supply skewed – report

A report by Gemfields rings the alarm bell on the…

Valentina Ruiz Leotaud | March 13, 2022 | 7:23 am

Rio Tinto’s Argyle Pink Diamonds Tender previewed virtually

In the era of covid-19, the tender was inspired by the Japanese philosophy of Ichigo Ichie, related to the unrepeatable nature of a moment in time.

MINING.COM Staff Writer | September 25, 2020 | 6:26 am

First defined diamond grading system ratified

ISO 24016 is to be used for the grading and description of single unmounted polished diamonds of more than 0.25 carats.

MINING.COM Staff Writer | September 24, 2020 | 6:15 am

De Beers cuts prices for smaller diamonds

Company reduced prices of rough diamonds smaller than one carat by more than 10%.

Bloomberg News | September 23, 2020 | 8:15 am

Some carbon-rich exoplanets may be made of diamonds

Researchers believe that carbon-rich exoplanets could convert to diamonds if water were present.

MINING.COM Staff Writer | September 23, 2020 | 6:30 am

Mountain Province resumes diamonds sales in Antwerp

Company sold 210,661 carats for a total of $8.9 million or $42 per carat at its first traditional diamond sale since the pandemic began on Sept. 19.

Bruno Venditti | September 21, 2020 | 6:12 am

CIBJO to train CSR, SDG officers in jewellery industry

CIBJO and Intertek Italia would create a pilot program that could lead to the creation of the World Jewellery Confederation Education Foundation.

MINING.COM Staff Writer | September 18, 2020 | 6:30 am

Petra finds five blue diamonds but no clear path to recovery

While the discovery is a boost for the struggling diamond miner, it won’t be enough to turn around Petra's fortunes.

Cecilia Jamasmie | September 16, 2020 | 9:09 am

Bids open for Canadian “flawless” 102-carat diamond

Bids for the rare 102.39-carat diamond opened on Sep. 15, and it may become one of the most expensive stones ever to sell at auction.

Cecilia Jamasmie | September 16, 2020 | 6:28 am

Renard diamond mine to restart in September

The mine, operated by Stornoway Diamonds, has been on care and maintenance since March.

Canadian Mining Journal Staff | September 15, 2020 | 9:04 am

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