91AV原创
Tag - diamonds
Subscribe
Digital
Print
October 27, 2026
Subscribe
Digital
Print
Cyberattacks
Consumption tax
Foreign community in Japan
Latest News
Home Delivery
JAPAN
Politics
Society
Crime & Legal
Science & Health
Explainer
History
WORLD
Politics
Crime & Legal
Science & Health
Society
ASIA PACIFIC
Politics
Crime & Legal
Science & Health
Society
BUSINESS
Companies
Economy
Markets
Tech
SPORTS
Sumo
Soccer
Baseball
Basketball
Tennis
Olympics
More sports
OPINION
Editorials
Commentary
Geoeconomic Briefing
Environment
CLIMATE CHANGE
Energy
SUSTAINABILITY
WILDLIFE
EARTH SCIENCE
LIFE
Travel
Digital
Food & Drink
Style & Design
Language
Lifestyle
CULTURE
Film
Books
Music
Art
TV & Streaming
Stage
Entertainment news
COMMUNITY
Voices
Issues
How-tos
Our Lives
My Account
My Bookmarks
Logout
Subscribe for more access
DIAMONDS
BUSINESS
/
Tech
/
FOCUS
Oct 27, 2026
China’s synthetic diamond sector eyes higher-margin AI cooling applications
If the gems become more widely used in technology thermal management, China’s dominance could become another supply-chain vulnerability for the U.S.
ASIA PACIFIC
/
Crime & Legal
Aug 3, 2026
Diamond buyers in Vietnam are freaking out after gem scandal
Investigators allege more than 30,000 stones worth over 1.5 trillion dong ($57 million) were brought into the country over the past two years.
BUSINESS
/
Economy
Jan 27, 2026
Japan and U.S. eye synthetic diamond production under $550B investment plan
Talk of such a move comes amid a push to expand production of the material, which is vital to chip and high-precision manufacturing.
BUSINESS
Sep 4, 2025
Lab-grown gems are robbing Botswana of its diamond riches
A diamond-market crisis has turned the finding of the gems into an affliction and a cautionary tale of what can happen to an economy that becomes overly reliant on one commodity.
BUSINESS
/
Markets
Aug 27, 2025
In India’s diamond hub, looming U.S. tariffs cut into growing trade ambitions
Trump’s levies threaten to sever India’s access to its largest diamond market, which accounts for nearly a third of its $28.5 billion annual shipments of gems and jewelry.
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.
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.
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.
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.
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.
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.
WHAT’S TRENDING
Editors' Picks
Two Japanese climbers die on remote Himalayan peak in Nepal
Aging Japanese village turns to Peru in search of new residents
Budget-friendly restaurant chain Saizeriya succumbs to rising costs
U.S. has for years asked Musk to alter Starlink service in Ukraine and Middle East, sources say
U.S. military bans Chinese-made BYD cars from key air base in Okinawa
A dramatic bear hunt in a midsize Japanese city could be a harbinger of what is to come
How this long-term resident avoids the annoying tourist label in Japan
What can Asia do to avoid crossing crucial climate tipping points?
Baku championships showcase rising standards in global sumo
91AV原创 permanent residency reform has a glaring blind spot
Podcast
Kabukicho: Tokyo’s ‘stadium of desire’
Longform
Convenience stores, toilets and the allure of everyday Japan
By
Elizabeth Beattie
SUSTAINABLE JAPAN
SPECIAL SUPPLEMENTS
Sponsored contents planned and edited by JT Media Enterprise Division.
SUPPLEMENTS BINDER