Rio Tinto lowers outlook as Argyle closure looms
Rio Tinto expects a decline in diamond production in 2020 as it reduces output at its Argyle mine in Australia, which is set to close in the fourth quarter.
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Graff buys 20.7ct Firebird vivid yellow diamond from ALROSA
Press release – Graff Diamonds, the world-renowned hi-end jewelry brand, has acquired the Firebird 20.7 ct diamond from ALROSA. The parties do not disclose the transaction details, but note that it achieved one of the highest prices per carat for such a stones in recent years.
Alrosa’s Angola mine to start production in 2020
After six years of development, production is due to begin at Alrosa’s Luaxe diamond deposit in Angola next year, the nation’s government said.
ALROSA unearths large 191ct rough diamond at the end of the year
Press release – ALROSA unearthed this crystal in the early hours of December 25 at the Botuobinskaya kimberlite pipe in Yakutia. According to estimations made by ALROSA’s experts on site, a rough diamond weighing 190.77 carats has high quality characteristics.
De Beers rough diamond sales for cycle 10, 2019
US$425 million (provisional)
ALROSA November sales of rough and polished diamonds reached $288 million
ALROSA Group announces diamond sales results for November and eleven months of 2019.
20-carat blue diamond goes for $741K per carat
Petra Diamonds Ltd. found a buyer for the 20.08-carat blue diamond it unearthed in South Africa earlier this fall.
De Beers rough diamond sales for Cycle 9, 2019
Press release – US$390 million (provisional).
ALROSA’s sales of rough and polished diamonds reach $264.4 million in October 2019
Press release – ALROSA Group announces diamond sales results for October and nine months of 2019.
Labs identify fingerprint for Argyle pinks
Two gem labs have joined forces to identify a method for determining whether a pink diamond came from the Argyle mine in Australia, and are issuing lab reports confirming their provenance.
Diamond manufacturers must brace for automation
Imagine the following: A diamond-mining company operating with self-driving trucks loads its haul of ore to the processing plant, where rough diamonds are separated from waste and arranged in their rough forms into different sizes before being sent for further aggregation.
ALROSA uncovers 230-ct diamond, the largest in recent years
Press release – A unique rough diamond weighing over 230 carats was unearthed at Udacnhaya kimberlite pipe on October 19. This is the largest gem-quality specimen found by ALROSA in more than three years.
