Moreshine Gemstone
Moreshine Gemstone

MISUNDERSTAND CONCERNING THE WORD “CABOCHON”

The word CABOCHON

     The word CABOCHON in the gem business is often used wrongly, to the point that some people miss the actual meaning of it especially here in Tanzania. If you are in the gem business make sure you use this word correctly.

     The word CABOCHON explains the cutting style of a gemstone not the quality of the gemstone as many think. You will find that some miners and even gem sellers use this word to define the quality of the gemstone.

     In the Gem cutting, there are styles which are famous, we will take a look at few of them.

Facet

  

Is a gem cutting style with many sides well cut and polished. The gem has to be transparent in order to cut as a facet. E.g. Diamond, Ruby, Sapphire or any other transparent gem. Below is facet image.

                    

Cabochon

  

Cabochon is a smooth rounded polished gem has a domed top with a flat or curved base. Below are cabochon images. The good example is chalcedony, chrysoprase, coral or opal

Carving

 This is another style of gem cutting, where as a gemstone is cut to design a desired figure or shape. E.g. map figure, car figure, animal figure etc. The good example is ruby zoisite 

Why some gemstones must cut in a Cabochon style?

  • Some gems appear more presentable when cutting them cabochon. There are some stones in order for them to shine the gem cutter must cut the cabochon style, e.g. Moonstone, opal, Star Ruby, Star Sapphire, Sunstone. ruby zoisite, ruby fuchsite,


  • The second reason is when the stone has visible inclusions, so to improve the value of the stone, it must be cut in the 'cabochon’ style.


  • Some of the gemstones are “opaque”, they do not allow the light to penetrate e.g. malachite, agate, coral, ruby zoisite, ruby fuchsite, amazonite, aventurine and feldspar

  

I hope that you have understood the meaning of word “CABOCHON”. Let me remind you once again, it is a cutting style and not the quality of the gemstone.

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