• slazer2au@lemmy.world
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    3 days ago

    The diamonds produced using this method are minuscule, hundreds of thousands of times smaller than those grown with the HPHT method. Hence, these diamonds are far too small for jewelry applications.

    Ah, there’s the catch.

      • paraphrand@lemmy.world
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        3 days ago

        It’s a catch when your perspective is hoping it will impact the negatives of the jewelry industry.

        • Almrond@lemmy.world
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          3 days ago

          The problem wouldn’t be fixed even then. The jewelery companies have people convinced that the only diamonds that are worth it are mined from the earth by a real human slave. Fixing that problem has nothing to do with gemstones.

          • threelonmusketeers@sh.itjust.works
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            2 days ago

            companies have people convinced that the only diamonds that are worth it are mined from the earth by a real human slave

            Is this still the case? I feel like I’ve seen “conflict free” as a selling point for (presumably labgrown) diamonds.

            • rockerface 🇺🇦@lemm.ee
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              2 days ago

              Me too. I’ve also heard synthetic gemstones can have colours and structures unlike anything that can form naturally. I want one of those, so that nobody would mistake it for a mined stone.

        • Tyfud@lemmy.world
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          3 days ago

          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@sh.itjust.works
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            2 days ago

            and surpass any natural sized ones

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

              • threelonmusketeers@sh.itjust.works
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                2 days ago

                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.

                • Blackmist
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                  2 days 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.

    • EleventhHour@lemmy.world
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      3 days ago

      For now. But diamonds are used for much more than simply jewelry. They have a vast number of industrial applications.

            • Atelopus-zeteki@fedia.io
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              3 days ago

              No, see my comment above. It’s a reference to a Paul Simon song, “Diamonds on the soles of her shoes”. While they might make the shoe soles last longer, they would be abrasive to flooring materials, and so not really practical at any price.

                • Atelopus-zeteki@fedia.io
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                  2 days ago

                  The song is a rich girl/ poor boy love song with some significant political commentary, made more palatable by the catchy tune. The rich girl is so wealthy she could afford to have diamonds on her shoe soles. This was released on Graceland in 1986. Diamonds were/are mined in South Africa - dug from the ground by poor South Africans. The whole story about DeBoers controlling the supply and price of diamonds may not have broken at that point. And even to this day we can’t synthesize large ‘jewelry’ grade diamonds.