"J. Grimbert" <jgr### [at] atos-groupcom> wrote in message
news:399BE961.342EF4CB@atos-group.com...
> 25ct wrote:
> >
> >      Hi Thomas,
> >
> >                        a brilliant-cut diamond has 58 facets including
the
> > 'table', the top. I believe that they are arranged in  30/60 degree
angles.
> >
>
> I will let you count the facets, but the classical angles are about 43, 44
and
> 45 degrees (at least in my books). You may have to adjust the 43/44
according
> to the IOR (not for diamond, but zyrcon may have a different angle...)
>
> I made a brilliant-cut some time ago; have a look at
>  http://www.citeweb.net/grimbert/pov/objet.html
>
> Now, if you find the gem-cutting manual for other cut,
> you're very welcome to share.
>
>
> >
> > "Thomas Lake" <tla### [at] homecom> wrote in message
> > news:399BB93B.1E684D2D@home.com...
> > > I have been thinking of getting back into hand coding a bit, haven't
> > > done any in......forever almost. I'd also like to learn to use macros.
> > > So I think I might combine the 2 and make my own Diamond image. I have
> > > some neat ideas involving a lot of facets and glass....see you in a
few
> > > years. Can anyone give me any accurate information on diamond cutting?
> > > For example some popular diamond cuts, how many facets etc..
> > >
> > > --
> > > Come visit my web site:-) : http://www.geocities.com/~thomaslake/
> > >
> > >

     Hi J Grimbert,
                           I digress, you were close. Closer than me anyway.
      Here are the actual cuts and angles.

     www.tdsn.com/idealcutdiamonds.html

      All the best,  ~Steve~

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