this post was submitted on 09 Dec 2024
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Futurology

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[–] [email protected] 3 points 1 month ago* (last edited 1 month ago) (1 children)

Will never happen until De beers exits the stage or is forced to.

We already have incredibly easy to make and cheap diamonds that can rival and surpass any natural sized ones.

They do not sell nearly as well because De beers has convinced everyone natural diamonds are a scarce resource, while they have a monopoly on the supply, of which there is no actual scarcity.

[–] threelonmusketeers 1 points 1 month ago* (last edited 1 month ago) (1 children)

and surpass any natural sized ones

What's the biggest synthetic diamond we've made so far? Has anyone made diamond spectacles or windows?

[–] [email protected] 2 points 1 month ago (1 children)

They're quite brittle, so probably not a window like you're thinking.

https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=15962

10mm diameter for just over £1000.

[–] threelonmusketeers 1 points 1 month ago (1 children)

10mm diameter

Ah, so still not quite Cullinan-scale yet. Optical quality is probably better though.

I'm surprised diamonds aren't used more for lenses. Given its high index of refraction, it seems like an ideal material.

[–] [email protected] 2 points 1 month ago

Yeah, the optical quality seems to be the main point. I assume there's few fields where that level of precision is worth it though. I doubt we're about to see it on an iPhone any time soon.