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Scientists at De Beers Fight the Growing Threat of Man-Made Diamonds (wsj.com)

"In the past few years, lab-grown diamonds have become indistinguishable from natural diamonds to the naked eye..." reports the Wall Street Journal. This creates a problem for diamond-mining company De Beers. HughPickens.com writes: While synthetics make up just a fraction of the market, they have growing appeal to younger buyers -- a headache for mine owners, who are under pressure to cut supply and lower prices, because traders, cutters and polishers are struggling to profit amid a credit squeeze and languishing jewelry sales... "Martin Roscheisen, chief executive of Diamond Foundry Inc., a San Francisco synthetic-diamond producer with a capacity of 24,000 carats, says he believes nearly all diamonds consumers purchase will be man-made in a few decades," reports the Journal. "To counter the threat, last year De Beers helped launch a trade association with other producers to market the attraction of natural diamonds. It also started marketing a new, cheap detector called PhosView, that uses ultraviolet light to detect lab-grown stones that quickly screens tiny synthetic diamonds.
It always seemed like a waste of money to me. After all, it's literally raining diamonds on Saturn.

4 of 365 comments (clear)

  1. Re:mountains of diamonds by thesupraman · · Score: 5, Interesting

    Nice shilling, but very much not true.
    They have some competition, yes.
    You if you read, just above, ' a headache for mine owners, who are under pressure to cut supply and lower prices'
    cutting supply is almost exactly how the prices have been kept at the stupid level they are these days.
    Diamonds are among the MOST common of the gemstones, and about the only reason for their pricing was cunning marketing and supply control..

  2. Re:mountains of diamonds by kurkosdr · · Score: 4, Interesting

    My thoughts exactly. Will the marketers of synthetic diamonds manage to establish them as "diamonds guaranteed to be free of imperfections and cruelty" or will the marketers of mined diamonds manage to establish synthetic diamonds as "not authentic"? BTW, I think the latter group will win. Nobody buys diamonds for the shiny effect (that's what cubic zirconia is for), they buy them to demonstrate they are willing to spend on something expensive but useless. Synthetic diamonds will be just as useless as real ones but -in the future- will fail at the "expensive" bit

  3. Re:mountains of diamonds by glenebob · · Score: 5, Interesting

    It should be possible to introduce impurities into a lab grown diamond to create patterns based on DNA, or a fingerprint, or hell, an RSA public key. Then they'd be unique in a more meaningful way than natural imperfections.

  4. Re:mountains of diamonds by ShooterNeo · · Score: 4, Interesting

    I just spent 15 minutes browsing "Diamond Foundry", one of the places that makes synthetics. They aren't cheap - but they do seem to be cheaper than natural diamonds, by 40% or so. Anyways, none of their synthetics are flawless. Cut, clarity, or inclusions - none are perfect in all 3. There are some that are supposed to have no flaws you can see without being a gemologist, for around 10k for a big one, but even a lab can't guarantee perfection it seems. Tiny differences in vibration, in the feed nozzles, flaws and contaminants in the production chamber - apparently the process is not yet perfected.

    With that said, it might be in 20 more years. There is talk of some day being able to make synthetic diamonds so large and flawless and in such vast quantities that they can be used as microchip wafers. A side effect of putting billions into it for the mass production of microchip wafers would probably be diamonds that are far superior to natural diamonds for less than a tenth of the cost.