[Jewelry making - Article 01690] - Re: [Orchid] Diamond Nexus Labs?

[Helen Hill]

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    Having looked at their site and reading all the bumph, I came to the
    same conclusion as you Neil. The "stones" must be ordinary CZ. If
    they were anything closer to the chemical composition of real diamond
    they would be shouting it from the rooftops! The following forum has
    information (although I'm not sure how reliable) on these "stones".
    Someone cited a report from a gemological lab which found it to be
    nothing more than ordinary CZ with no special coating.
    http://www.diamond.info/forum/index.php?showtopic=2456. There is also
    the suggestion that the company is a big scam, whose employees write
    third hand reviews of excellence to perpetuate such a scam. Obviously
    this could just be conjecture and they may be a very good company
    selling a very good product, but to those people out there who like
    to know what their "stone" is made of, they're not doing a very good
    job. 

    There was a company that amused me somewhat, when I was researching
    diamond simulants and synthetic diamonds. I can't remember what they
    were called and can't find the information I had on them, but the
    company said that they actually used the carbon remains of a loved
    one and made that into a synthetic diamond! The impression was that
    it was made of carbon just like a real diamond (possibly by some
    sort of vapour deposition technique but I can't remember for sure). I
    was sort of mildly amused and freaked all at the same time. 

    But as for Diamond Nexus Labs, they are being so vague about the
    chemical composition, well the information is just plain not
    available so it is more than likely CZ and should probably be
    treated as such when setting. 

    Obviously I am a newby so don't speak as a "jeweller" and wouldn't
    profess to give jeweller advice to you professional jewellers. I am a
    hobbyist at present, but take a keen interest in the materials
    composition side of things due to my chemistry training. 

Helen
Preston, UK
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