[Jewelry making - Article 00226] - [Orchid] The Shape of an Emerald...

[H.Durstling]

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Hi everyone

    I'm in a bit of a quandary about cutting some emeralds for a
    geologist friend who brought them back from Brazil. They're a very
    nice deep green color and almost clean, save for a few fractures.
    These I think (without having done it yet) should pretty much vanish
    after the stones are oiled. 

    The problem lies in the shape of the rough. It would yield quite a
    large stone if I cut it so as to make one of the large flat sides the
    table. But it would not be deep enough to get the proper pavilion
    angles. 

    Standing the stone up on its side and using a narrow side as the
    table will yield a narrow but deep stone, plenty deep enough to get
    the proper pavilion angles. Yet a great deal of nice clear emerald
    would  be ground away (from the bottom) in the process. 


Let me try that visually


		A                              B
		
		___________                  ______
		|          |                 |    |
		|          |                 |    |
		|__________|                 |    |
		                             |    |
		                             |    |
		                             |    |
		                             ------


    "A" would yield a larger but shallow stone; "B" a smaller, narrower
    stone but with proper pavilion angles and much wastage at the bottom. 

    What say you, gem-savvy Orchideans? How important are proper
    pavilion angles in a nice deep green emerald? Which way of cutting
    will preserve the most value? 

Cheers & thanks
Hans Durstling
Moncton, Canada 

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