Name: 生长的钻石比开采的钻石更好（Why lab-grown diamonds are better than mined diamonds）
Uploaded: 2021-06-08T10:17:24.000Z
Duration: 8 min 42 s
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“It's got to be the prettiest engagement ring anybody ever had”

“You're beautiful like diamonds in the sky.”

But also the cause of  brutal civil wars,

diamonds are strangers to the earth's surface.

Their true home is in the hellish foundry

with temperatures over 1,000 degrees Celsius,

under conditions impossible to replicate.

And the process is getting so much better and faster,

that soon enough we might no longer need to mine them.

a source of poverty for this community.”

This is Farai Maguwu, an activist who spent his life

exposing crimes in the Zimbabwe's diamond business.

This made him a target for corrupt authorities.

I managed to sneak [out] through the window."

who are going in there because of poverty.

So when they catch them, they don't arrest them.

They handcuffed them, and then they set dogs on them.

They also beat people, they also shoot to kill.”

“If you are wearing a diamond, take a close look at it.”

“Do you know that West Africans were used as slaves

just so that you might be able to wear that diamond?”

“Civil groups want Zimbabwe banned from the world

diamond market because of its human rights abuses.”

“People used to fish from that river, they can not do it anymore

because of the sand that is coming from the open-cast mining.

So, it's a disaster and no one holds them accountable for their environmental crimes.”

But economics could succeed where politics failed.

his family has been in the diamond business for three generations.

“When you are born in this business, you are going to be in this business.

This is exactly what my grandfather told me, when I was in my twenties."

But his company is breaking industry taboos.

a company that for a long time controlled the production of most of the world's diamonds,

and which, as its one-time chairman said, increased their value by making them artificially scarce.

But if other commodities are anything to go by, the value of diamonds could drop quickly.

Until the early 1800's it was more valuable than gold.

That's why it's on the Washington monument, and why Napoleon III served his guests

But aluminum was never rare,  just difficult to make at the time.

With diamonds, something similar is happening.

“As far man-made diamond production,  that technology has actually existed

But for a long time, we could only make tiny grains for industrial applications.

“But about four to five years ago we started to see advancements in technology

that allowed for production of gem-quality diamonds that are man-made,

and high enough quality to be used in jewelry.”

“We take a slice of a ALTR-created diamond and it's arranged in a proprietary chamber.

You arrange those seeds almost like a waffle and you close the chamber.

You raise the temperature inside while pumping a combination of proprietary gasses.

When the temperature is in the mid 1,300 to 1,400 degree centigrade

methane splits and the pure carbon that is separated starts bonding.

This bond of carbon starts connecting with the seed that's sitting at the bottom of the chamber

This technology is still energy-intensive, but it's still more sustainable and

Just a few months ago, one of the world's largest mines closed because

it was no longer profitable to keep digging.

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生长的钻石比开采的钻石更好（Why lab-grown diamonds are better than mined diamonds）

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