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Synthetic diamonds are now purer, more beautiful, and cheaper than mined

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31–40 of 511 posts

Re: Synthetic diamonds are now purer, more beautiful, and cheaper than mined

#32
post #16

Earlier quoted context omitted.

They never had any value, apart from specialized ie glass cutting tool. Only when DeBeers realized they could push some fictious heavy marketing 'to prove your worth to woman you are asking to marry' for those shiny stones nobody wanted to buy, people who didn't know better got manipulated into buying them. They are supposedly very common in universe, and probably in deeper Earth too. Correction is healthy and benefi…

I think diamonds are used in some lathes as cutting tools. So suprising thats not more common. I though diamonds strength and iirc its heat tolerance would be attractive to the folks who cut stuff.

The hardness is attractive but the poor heat resistance is a major problem for many uses. For a normal angle grinder you can use normal abrasive disc without paying much attention, but with a diamond-grit one you can easily burn the diamonds.

Re: Synthetic diamonds are now purer, more beautiful, and cheaper than mined

#33

“ Lab diamonds are a testament to the principle that what nature can do, man is capable of doing better.” Profound hubris in an otherwise interesting article.

Would love to see us turn iron into gold as well as nature does with supernovas.

Re: Synthetic diamonds are now purer, more beautiful, and cheaper than mined

#34
post #16

Over the past 10 years, there has been an explosion in cheap lab diamond and moissanite producers in China and India. 10 years ago, it was hard to find quality lab diamonds at a reasonable price, and moissanite was still reasonably expensive at $400-600/ct. Today, given cutthroat competition and "race to the bottom" pricing strategies, lab diamonds are ubiquitous, extremely high quality, and cheap. Less than $200/ct…

They never had any value, apart from specialized ie glass cutting tool. Only when DeBeers realized they could push some fictious heavy marketing 'to prove your worth to woman you are asking to marry' for those shiny stones nobody wanted to buy, people who didn't know better got manipulated into buying them. They are supposedly very common in universe, and probably in deeper Earth too. Correction is healthy and benefi…

Diamonds certainly have value as a material for jewelry -- essentially unscratchable jewelry is pretty awesome. They also don't get cloudy over time or anything. That's the cool part.

Re: Synthetic diamonds are now purer, more beautiful, and cheaper than mined

#35
post #9

Earlier quoted context omitted.

LMGTFY gemsny.com friendlydiamonds.com lightboxjewelry.com I found a wide variety of 2-3ct diamonds for $1200-1400 there (round, brillant cut, the "classic" type), which is what a 0.75-1.0ct used to cost

Go direct to the source and you can get 2ct colorless diamonds at less than $600 shipped. e.g., https://detail.1688.com/offer/751071300271.html There are literally hundreds of suppliers like that in China/India. Do not pay more than $1000 for a diamond of any size.

This looks too good to be true. I am interested in this (because of all the terrible stuff related to diamond mines), but how do you protect yourself from scams on this site? $500-$1,000 is a lot to "test the waters" and see if they are real or even if they will arrive. What is the chance the just swap it out with Moissanite or who knows what?

Re: Synthetic diamonds are now purer, more beautiful, and cheaper than mined

#36

Over the past 10 years, there has been an explosion in cheap lab diamond and moissanite producers in China and India. 10 years ago, it was hard to find quality lab diamonds at a reasonable price, and moissanite was still reasonably expensive at $400-600/ct. Today, given cutthroat competition and "race to the bottom" pricing strategies, lab diamonds are ubiquitous, extremely high quality, and cheap. Less than $200/ct…

I need diamonds to play my records! What do you think a record stylus ("needle") is made from?

Worthless (as in low monetary value) doesn't mean useless.

Re: Synthetic diamonds are now purer, more beautiful, and cheaper than mined

#37
post #16

Over the past 10 years, there has been an explosion in cheap lab diamond and moissanite producers in China and India. 10 years ago, it was hard to find quality lab diamonds at a reasonable price, and moissanite was still reasonably expensive at $400-600/ct. Today, given cutthroat competition and "race to the bottom" pricing strategies, lab diamonds are ubiquitous, extremely high quality, and cheap. Less than $200/ct…

They never had any value, apart from specialized ie glass cutting tool. Only when DeBeers realized they could push some fictious heavy marketing 'to prove your worth to woman you are asking to marry' for those shiny stones nobody wanted to buy, people who didn't know better got manipulated into buying them. They are supposedly very common in universe, and probably in deeper Earth too. Correction is healthy and benefi…

  > Who does not love diamonds? Where is there a mind in
  > which the bare mention of them does not excite a
  > pleasant emotion? Is there any one of rank too exalted
  > to care for such baubles? The highest potentates of the
  > earth esteem them as their choicest treasures, and
  > kingdoms have been at war for their possession
From "Diamonds" by William Pole, published in 1861 [1] (27 years before the formation of the De Beers company)

[1] https://www.google.com/books/edition/Diamonds/ENwOAAAAYAAJ?h...

Re: Synthetic diamonds are now purer, more beautiful, and cheaper than mined

#38
post #16

Earlier quoted context omitted.

They never had any value, apart from specialized ie glass cutting tool. Only when DeBeers realized they could push some fictious heavy marketing 'to prove your worth to woman you are asking to marry' for those shiny stones nobody wanted to buy, people who didn't know better got manipulated into buying them. They are supposedly very common in universe, and probably in deeper Earth too. Correction is healthy and benefi…

I think diamonds are used in some lathes as cutting tools. So suprising thats not more common. I though diamonds strength and iirc its heat tolerance would be attractive to the folks who cut stuff.

Diamonds are excellent for cutting some materials, e.g. ceramics or some non-ferrous alloys, but they are bad for cutting metals that are good at dissolving carbon, e.g. iron, cobalt and nickel alloys.

So for the iron alloys, which are the material most frequently processed by machining, diamond is not suitable. Other hard crystals, like alumina a.k.a. corundum, are much better for this purpose, even if they are less hard than diamond.

Re: Synthetic diamonds are now purer, more beautiful, and cheaper than mined

#39

(Not related to the content of the article) What a beautiful site. The subtle pink background, the choice of font, the minimal appearance (true to the spirit of being minimal, not just dead-ass simple), the way images are woven through, the footnotes, ... Excellent execution!

[flagged]

Re: Synthetic diamonds are now purer, more beautiful, and cheaper than mined

#40
post #16

Over the past 10 years, there has been an explosion in cheap lab diamond and moissanite producers in China and India. 10 years ago, it was hard to find quality lab diamonds at a reasonable price, and moissanite was still reasonably expensive at $400-600/ct. Today, given cutthroat competition and "race to the bottom" pricing strategies, lab diamonds are ubiquitous, extremely high quality, and cheap. Less than $200/ct…

They never had any value, apart from specialized ie glass cutting tool. Only when DeBeers realized they could push some fictious heavy marketing 'to prove your worth to woman you are asking to marry' for those shiny stones nobody wanted to buy, people who didn't know better got manipulated into buying them. They are supposedly very common in universe, and probably in deeper Earth too. Correction is healthy and benefi…

> They never had any value

The Crown Jewels disagree with you

https://www.hrp.org.uk/tower-of-london/history-and-stories/t...

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