Tag - diamonds

 
 

DIAMONDS

Naohisa Hoshikawa, chief executive officer and founder of Ookuma Diamond Device, in Sapporo in February. Hoshikawa says the potential of diamond semiconductors goes beyond decommissioning work, likening them to the U.S. Apollo manned lunar landing program, which gave birth to technological innovations affecting everyday life.
JAPAN / Science & Health
Mar 12, 2025
Diamond chips could be key to decommissioning of Fukushima nuclear plant
Made with artificial diamonds, such chips are regarded as the "ultimate semiconductors" — they can withstand high levels of radiation as well as high voltages and temperatures.
Japan Times
BUSINESS
Sep 17, 2022
Russia’s secret gem sales are dividing the diamond world
Many in the industry refuse to deal in Russian gems following the invasion of Ukraine and after mining giant Alrosa was hit with U.S. sanctions.
Japan Times
WORLD
Apr 26, 2019
Largest uncut diamond in recent history found in Botswana mine
Lucara Diamond Corp. has unearthed the largest uncut diamond in recent history in its Karowe mine in Botswana, the Canadian company said on Thursday, beating its own record discovery from November 2015 that it struggled to sell for nearly two years.
Japan Times
BUSINESS
Apr 25, 2019
More than 40 million people work in artisanal mining, digging precious ore by hand: report
More than 40 million people around the world work in artisanal and small-scale mining where minerals including gold, diamonds and cobalt are dug up often by hand, a report by the World Bank and development organization Pact said on Wednesday.
Japan Times
WORLD
Dec 5, 2017
Sierra Leone Peace Diamond nets $6.5 million in auction to raise funds for West African nation
Sierra Leone sold one of the world's largest uncut diamonds for $6.5 million at a New York auction Monday to raise funds for development projects in the West African country.
WORLD
Nov 19, 2015
Small Canadian firm finds second-biggest gem-quality diamond ever
A small Canadian diamond company has found what it says is the world's second-biggest gem-quality diamond ever recovered, and the largest in more than a century, at its mine in Botswana.
Japan Times
BUSINESS
Jun 25, 2015
Diamonds not forever as Japanese offload jewels for cash
Diamonds aren't necessarily forever. At least not in Japan, where jewelry owners are unloading unwanted jewels for cash at a record pace and shipping them off to buyers in China and India.

Longform

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