Gemstones Cutting Machines, Consulting and Training, Rough & cut Gemstones Supply



Gemstones Cutting Machines, Consulting and Training, Rough & cut Gemstones Supply


Gemstone Cutting Machines, Lapidary Courses, Training courses and Consulting for the optimization of cutting factories

WEIGHT Calculation Formulas


Quadrature
Jewelry Manufacturing
Thailand.
( French - English )

GEMSTONES CUTTING COURSES : Slicing Demo

This is a demo to illustrate what a good slicer is supposed to optain from a rough gemstone.

Gemstone-slicing-courses
Rough Material:
- Rubelite from Africa
- 3 large pieces
- We will slice the middle one
Rubelite rough stone before slicing
Selection of a piece to slice:
Some opaque green tourmaline needs to be removed:
<Dowload demo 368KB>
Rough gemstones observation
Oservation of the rough: Look in all directions for the optimization of weight and clarity. <Dowload demo 847KB>
slicing rubelite rough
Separating the main parts:
before to slice into small piece. Looking for visibility. (HQ Video)
<Dowload demo 81.8Mo>
Observation before preforming the gemstone
Slicing into pieces:
This is where the cutter is saving or loosing money. (HQ Video)
<Dowload demo 56.8Mo>
gemstone preform
Preforming using the slicing machine will also create smaller pieces for calibrated sizes.

preforming starts from the slicing machine
All the pieces cannot end up as nice as this one. Sometimes no shape is coming out very clearly. <Dowload demo 2.98Mo>
Result after slicing this piece of rough, color grading
Final result:
11 stones of a nice size
and many smaller ones forproduction in calibrated sizes


In order to reach this level of expertise a student will need the basic and advanced courses.
And before to get his hands on such valuable material, we suggest a lot of training on smaller and cheaper rough in the quartz familly.

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Manja Thai Co., Ltd,
Manja Thai Co., Ltd.
50/31, Pan Road, Silom,
Bangrak, Bangkok 10500,
Thailand

Tel: +66 2635 0858
Fax: +66 2635 0859

Manja-Thai Co., Ltd. is member of the Thai Gems and Jewelry Trade Association (TGJTA)

 

Keywords:
Semi precious stones, rough gemstones, cutting machines, gemstone supplier, gemstones cutting machines, index cutting machines, index machines, cutting design, lapidary, cutting factory, rough stone, millemium cut, slicing, polishing, faceting, preforming, heat treatment, oil treatment, gemstones heat treatment, gemstones cutting lessons, gemstones cutting courses, lapidary courses, learn gemstones cutting

 

USESEFUL LINKS

Laboratories & schools Forums & Networks Knowledge Associations
www.gemnantes.fr (D.U.G. France) www.gemologyonline.com/ www.fieldgemology.com/ www.crg-dug.fr/
www.gubelinlab.com (GUBELIN) www.pricescope.com www.mindat.org www.gemstone.org (ICA)
www.aigslaboratory.com (A.I.G.S.) www.geminterest.com http://webmineral.com www.agta.org (AGTA)
www.aigsthailand.com
http://polygon.net/ www.themelis.com/ www.dgemg.com/ (D-Gem-G)
www.gia.edu (GIA) www.ganoksin.com www.diamondse.info/ www.thaigemjewelry.or.th (TGJTA)
www.gemresearch.ch (GRS)   www.ruby-sapphire.com Others
www.ssef.ch (SSEF)   www.swalagemtraders.com http://gemme.la.rca.free.fr (Profile)
www.hrd.be (HRD)    

Gemstones from a Gemologist

www.igiworldwide.com (IGI)      

 


 

© 2007  Manja Thai Co., Ltd.                                          Managing Director: Yanick Mandaba  "Quadrature"   Links