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How to cut gemstoneBy Dashrath International
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Mine
•
Gemstones are extracted fromdifferent mines all around theworld
• Wether by surface mining, oropen pit or strip mining
•The Picture is an open pit miningsite in Zambia called Kariba
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Raw material
Raw Gemstones, on left picture raw
amethyste before being cut
On right picture a beautiful Topaze crystal.
First Gemstones are roughly cut with a
cutter plier or a circular saw in order to
eliminates a maximum of inclusion.
Black spin
Being cut
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MachinesA modern facetting machine
At this moment the lapidary choose th
to fit the gemstone piece in order to av
maximum of weightloss.
It tooks approximatively 1 day to com
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Standard shapes
These are the most used shape in
There is also standard size; 1mm, 1
1.75 mm, 2mm, 2.5mm, 3mm, 4m
8mm, 9mm, 10mm, 12mm for rou
And 3*4mm, 3*5mm, 4*6mm, 7*5
8*10mm, 10*12mm,10*14mm, 12
Ovale shapes
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Fancy shapes
Fancy shapes means custom shapes, any shape is possibleFor example this Zultanite shaped like a snowflake
Other examples of fancy shapes
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Facets
Honeycomb facets
Triangle facets
Square facets
The different kinds of facets enhance the aspect
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The art of facetting
The final gemstone, must no
Too deep, because of light r
Standard 58 facets An example of 144 facets Multifacets or « Portu
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Cabochon
Oposed to faceted gemstone, cabochon is cutting the gemstonesTo have a round smooth surface.
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Concave cut
The gemstone can be cut « concave », that meaInstead to be plan, which gives more narrow an
Concave cut can improve brilliance of gemstone
Time provide a diffusing effect
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Contact Details
•
Gemstone And Jewellery• 13625 s 48th street apt 2070
• Phoenix
• Arizona 85044
• USA
• 480-704-4020
• https://www.gemstoneandjewellery.com/
