diamonds
Latest about diamonds

Gold and gems quiz: What do you know about sparkly treasures made by nature?
By Kristina Killgrove published
Think you know a lot about jewels? Can you make this whole quiz shimmer?

Perplexing diamonds from South Africa mine contain 'almost impossible' chemistry
By Stephanie Pappas published
Seemingly contradictory materials are trapped together in two glittering diamonds from South Africa, shedding light on how diamonds form.

Why do diamonds come in different colors?
By Alice Sun published
The vast majority of polished diamonds are clear and sparkly, but some come in unexpected colors like blue, green and even pink. So why are some diamonds different colors?

9-mile-thick layer of solid diamonds may lurk beneath Mercury's surface, study hints
By Deepa Jain last updated
New simulations suggest that a 9-mile-thick layer of solid diamonds may lurk deep below the surface of Mercury. The gems almost certainly can't be mined for bling — but they may help solve some of the planet's biggest mysteries.

Argyle mine: Earth's treasure trove of pink diamonds born during a supercontinent's break up
By Sascha Pare published
During 37 years of operations, the now-closed Argyle mine produced more than 865 million carats (191 tons) of rough diamonds and 90% of the world's pink diamonds.

Scientists grow diamonds from scratch in 15 minutes thanks to groundbreaking new process
By Deepa Jain published
Scientists have used a new technique to synthesize diamonds at normal, atmospheric pressure and without a starter gem, which could make the precious gemstones easier to grow in the lab.

Scientists may have pinpointed the true origin of the Hope Diamond and other pristine gemstones
By Stephanie Pappas published
Researchers suggest that the famed Golconda diamonds, including the Hope Diamond and Koh-i-noor, may have originated from a volcanic outcrop nearly 200 miles from where they were mined.

New diamond transistor is a world-1st — paving the way for high-speed computing at the highest temperatures
By Tim Danton published
Scientists have created an n-channel transistor using diamond for the first time, potentially leading to faster components that can work in extreme conditions.
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