| ▲ | How Diamonds Are Made(diamond.jaydip.me) |
| 60 points by lemonberry 2 days ago | 37 comments |
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| ▲ | cassepipe an hour ago | parent | next [-] |
| > From here, there are two rounds of sorting: gem quality and industrial grade. Most of mined diamonds never become jewellery. They go to cutting tools, drill bits, and grinding equipment. For industrial use synthetic diamond is actually quite cheap now. The vast majority of industrial diamonds used today are synthetic and they've been affordable since the 1950s (?). Industrial-grade synthetic diamond grit or powder can cost as little as a few dollars per carat. This makes it far cheaper than mining natural diamonds for the same applications. |
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| ▲ | ridgeguy a minute ago | parent [-] | | Diamond grit for polishing and grinding is now a cheap commodity. In 10,000 ct. lots, I pay from 5¢/ct. to 30¢/ct. depending on specific grit properties. I haven't searched for it, but diamond sandpaper should be a thing at these prices. |
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| ▲ | A_D_E_P_T 5 hours ago | parent | prev | next [-] |
| Well, that goes for some diamonds. There's another kind that are made by man. In recent years -- over the past four or five years -- there has been an explosion in synthetic diamond production, largely driven by factories in China and India. There are a lot of those factories (spurred by the relatively easy availability of the necessary production-line equipment) and they're all in cutthroat competition with each other, so there has been a race to the bottom on price. You can get huge, very high-quality diamonds now for a fraction of what they used to cost. Like 95% off. It's crazy. |
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| ▲ | thrance 3 hours ago | parent | next [-] | | I'm often reminded of this classic tweet: > it's actually crazy we figured out how to grow real diamonds that are cheaper and better quality than the real thing and so many people are still like, no thanks the suffering is what makes it special. https://x.com/missmayn/status/1612892354624786444 | | |
| ▲ | Auracle 31 minutes ago | parent | next [-] | | That’s a silly way to look at it. Surely people can realize that something made through natural processes has more of an appeal than something made in a factory? That said, most of the gems I’ve purchased in my life have been lab grown. | |
| ▲ | jebarker 3 hours ago | parent | prev [-] | | It’s kind of surprising that diamonds still have appeal as jewelry at all given the rise of lab-grown. I always assumed that people liked them because they were rare and expensive. | | |
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| ▲ | chistev 2 hours ago | parent | prev | next [-] | | Could you distinguish between them if you weren't told? | | |
| ▲ | para_parolu 2 hours ago | parent | next [-] | | In final jewelry no. This is why brands like Tiffany are in panic and pivoting to mechanical-watch-like branding, where only inflated price matters. | |
| ▲ | analog31 19 minutes ago | parent | prev | next [-] | | There are some applications, such as IR optics, where natural diamonds aren't pure enough. | |
| ▲ | mlmonkey 22 minutes ago | parent | prev | next [-] | | DeBeers has been working on systems to do that. | |
| ▲ | s0rce 2 hours ago | parent | prev [-] | | With close microscopic examination of inclusions and defects, yes you probably can. There are also spectroscopic differences. In general looking at finished jewelry, no, not really. | | |
| ▲ | A_D_E_P_T 2 hours ago | parent [-] | | > With close microscopic examination of inclusions and defects, yes you probably can. With good laboratory instrumentation, you might be able to distinguish between them -- i.e. note that they're not perfectly identical, that they are distinguishable -- but, unless you are an expert, you would be unable to tell which of the two is the natural stone. So, practically speaking, it doesn't matter. | | |
| ▲ | s0rce an hour ago | parent [-] | | Yes, you need to know which features are evidence of mined vs. synthetic/lab grown. Although there is equipment now preloaded with software that can discriminate. I think its based on photoluminescence. |
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| ▲ | Etheryte 4 hours ago | parent | prev | next [-] | | Links and examples? Last I checked, this applied to industrial diamonds, not jewelery. | | |
| ▲ | saghm 2 hours ago | parent | next [-] | | My wife and I got our engagement and wedding rings from Krikawa[1]. The stones on her ring were synthetic, extremely affordable given the size, and visually flawless. (Not quite as related, but the process was also really easy; we were able to communicate everything over email, get sizing kits mailed to us rather than having to go in person, and they sent us visual mock-ups and procedurally generated 3D videos of what the results would look like, which was helpful because the rings my wife picked out had been temporarily delisted as they found an issue with it that they wanted to fix, so they went ahead and figured it out so they could make them for us without us having to wait for them to appear on the site again). [1]: https://www.krikawa.com/ | |
| ▲ | Sharlin 4 hours ago | parent | prev | next [-] | | Synthetic gem-quality diamonds are old news by now. Since the 2010s, you have been able to make essentially flawless diamonds by vacuum deposition, of higher quality than anything found in nature, weighing up to a hundred karats or so. They’re also vastly more ethically produced than most natural diamonds, and don’t have prices inflated by the artificial scarcity imposed by the De Beers monopoly. https://en.wikipedia.org/wiki/Synthetic_diamond | | | |
| ▲ | dwd 3 hours ago | parent | prev | next [-] | | Try somewhere like Blue Nile [1]. The price of natural diamonds increases exponential once you go over 1ct and the size becomes rarer. Here's a quick comparison on just size, clarity and the visibility of inclusions. A 1ct very good quality stone, E-F, VVS2 or better, no fluorescence - you're looking at a 88% reduction in cost ($700 vs $6,000). Jump to 2ct and it's $2,300 vs $32,000. At 3ct, the lab grown is still only $4,200 where the natural at that size starts at $82,000. [1] https://www.bluenile.com/diamonds | | |
| ▲ | A_D_E_P_T 3 hours ago | parent [-] | | And in China and India they're roughly 3x cheaper than that, i.e. a 3ct lab-grown stone is somewhere under $1500. (I posted a link to one absolutely typical example in a previous comment.) It's amusing that the price of gold has skyrocketed just as the price of diamonds has nosedived. Some old rings, which were valued for the small diamonds they carried, are now more valuable for their weight in gold. |
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| ▲ | A_D_E_P_T 3 hours ago | parent | prev | next [-] | | How large do you want them? > https://item.taobao.com/item.htm?id=828627288905&skuId=55567... This ring goes up to 5ct, and some other listings are at 7ct. A 3ct example at the link, which would easily be a >$20k ring under other circumstances and isn't too comically large, will run you about $1500. There are many, many others. | |
| ▲ | js2 2 hours ago | parent | prev | next [-] | | https://old.reddit.com/r/labdiamond/ | |
| ▲ | Our_Benefactors 3 hours ago | parent | prev [-] | | James Allen, Brilliant Earth, Jared, Blue Nile, all of these vendors sell lab created diamonds openly and let you compare side by side. A diamond that’s $10k natural can be had for $1500 lab created without any scarcity. |
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| ▲ | ramesh31 2 hours ago | parent | prev [-] | | >"You can get huge, very high-quality diamonds now for a fraction of what they used to cost. Like 95% off. It's crazy." The thing is though, what's the point? Unless you're trying to actually pass your diamond as real, there's literally no difference between that $1500 lab grown gem and a $5 piece of costume jewelry. No one but a jewler will ever tell the difference, so why pay anything at all? With real diamonds today you are paying for that certificate of providence, which is what actually gives it any value. Used diamonds of course are worth nowhere near their retail value, but used lab grown are worth zero, both monetarily and sentimentally. Grandma's heirloom Tiffany engagement ring will have meaning in the way that a lab grown no name ring ordered online will not, even if they are completely indistinguishable. | | |
| ▲ | callc 2 hours ago | parent [-] | | As a fan of cool rocks and gems, and putting aside price and societal influences, diamonds are cool! Especially compared to hard plastic “costume jewelry” (which I think you’re referring to), gems are hard, don’t scratch as easily as hard plastics, and have cool reflections. | | |
| ▲ | ramesh31 2 hours ago | parent [-] | | Referring to mossanite and cubic zirconia, which are completely indistinguishable to a normal person, and can be had for dollars per carat. |
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| ▲ | mlmonkey an hour ago | parent | prev | next [-] |
| Since this is HN, as an aside, Surat (the city mentioned in the article where the gems are polished) holds the dubious record of being the last major city in the world to have had an epidemic of the bubonic plague[1] back in 1994. They took the opportunity to really clean up the place after that. Today, Surat is known for another distinction: the world's largest office building[2] (even larger than the Pentagon). [1] https://en.wikipedia.org/wiki/1994_plague_in_India [2] https://en.wikipedia.org/wiki/Surat_Diamond_Bourse |
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| ▲ | jdsane 42 minutes ago | parent [-] | | true, I am the author of article. Surat's SMC does very good job keeping it clean. |
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| ▲ | tromp 5 hours ago | parent | prev | next [-] |
| And how diamonds are grown: https://en.wikipedia.org/wiki/Synthetic_diamond |
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| ▲ | nilirl an hour ago | parent | prev | next [-] |
| Anyone know how those MS-paint-like vibrating gifs were made? |
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| ▲ | IG_Semmelweiss 3 hours ago | parent | prev | next [-] |
| I wish articles/domains like this one, which are accessible, playful, informative, short, and with images would be easy to identify in HN. That would be something worthwhile to share with children aged 8-12 who love learning new things. |
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| ▲ | cwillu 2 hours ago | parent [-] | | Playful yes, but it is anything but accessible. | | |
| ▲ | jdsane 40 minutes ago | parent [-] | | hello, I'm the author of article. I've tried my best to use accessibility patterns. If there's anything that i can improve lmk :) |
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| ▲ | natali_gray 3 hours ago | parent | prev | next [-] |
| Amazing design. Very interactive!! |
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| ▲ | excalibur 3 hours ago | parent | prev [-] |
| That's not how Superman did it. |