rough diamond
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Author:  steve5542 [ Thu Sep 12, 2019 6:10 pm ]
Post subject:  rough diamond

Any one know of lab or other non natural being sold as natural rough diamonds? Bought one 3 years ago and thinking of getting a few more to set in silver, small, 1ct. or so.

Author:  steve5542 [ Fri Sep 13, 2019 12:56 pm ]
Post subject:  Re: rough diamond

I did read, Authenticity of Rough Diamonds, after I posted.

Author:  Barbra Voltaire, FGG [ Fri Sep 13, 2019 10:29 pm ]
Post subject:  Re: rough diamond

Then, I guess you know all synthetic diamonds will be type II.
Type I and type II diamonds can be distinguished by type II’s transparency under short-wave ultraviolet radiation and both types can be definitively separated by infrared spectroscopy or a buddy with an EXA.

Natural diamond xls commercially available for the public are usually a bit ugly.....except for the John Betts specimens. I'd still rather see them in a display case than in jewelry.

Synthetic diamond xls are more uniform:

syn_diamonds.jpg [ 162 KiB | Viewed 7764 times ]

Author:  1bwana1 [ Sat Sep 14, 2019 10:46 am ]
Post subject:  Re: rough diamond

There are lots of imitation rough diamonds on the market. However, most are in the diamond fields where small dealers sell them to uneducated buyers trying to get rich.

Author:  Barbra Voltaire, FGG [ Sat Sep 14, 2019 12:26 pm ]
Post subject:  Re: rough diamond

Agreed, I think imitations are far more of an issue than synthetics.

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