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 Post subject: The Complete Handbook for Gemstone Weight Estimation and
PostPosted: Fri Jan 18, 2013 1:05 am 
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Joined: Sat Jun 07, 2008 4:38 pm
Posts: 125
Location: victoria, bc, canada
Hi,

Does anyone have opinions on either of these books? They not inexpensive so I'd like to hear your ideas.

The Complete Handbook for Gemstone Weight Estimation
Carmona

Handbook Of Fine Jewelry
Schiffer

Thanks,
Bill


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 Post subject: Re: The Complete Handbook for Gemstone Weight Estimation and
PostPosted: Tue Jan 29, 2013 2:35 pm 
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Joined: Thu Dec 13, 2007 4:16 pm
Posts: 219
Location: Georgia USA
Hi Bill,

I don't have information on those books, but if you have an iPhone you might try downloading the "Carats" app. It has several measurement converters and will also do gemstone weight estimates. Enter the length, width, depth, select from a list of materials and cut styles, and you'll get your estimate. I've found it to be fairly accurate for classic cut styles; less so for new designs.

_________________
Gary Braun
www.finewatergems.com


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 Post subject: Re: The Complete Handbook for Gemstone Weight Estimation and
PostPosted: Tue Jan 29, 2013 2:55 pm 
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Joined: Sun Oct 16, 2005 12:22 pm
Posts: 19939
Location: San Francisco
Often the software downloads just cover common shapes.
I have The Complete Handbook for Gemstone Weight Estimation by Carmona

and have found it useful for estimating unusual shapes......for instance I used it to estimate the weight of the beryl in these Buccellati earrings:
Image


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