Author Topic: Question about minimum cuttable thickness  (Read 369 times)


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Question about minimum cuttable thickness
« on: March 14, 2022, 08:36:31 AM »
Hi, I am very inexperienced but have a few bits and pieces (nothing very good!) I was hoping to try sending to Lamberts. I have a few sapphires that are maybe 4 mm across but very thin. Can anyone tell me the minimum thickness that can be cut into anything? With thanks

Faceting Frank

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Re: Question about minimum cuttable thickness
« Reply #1 on: March 14, 2022, 01:15:48 PM »
Hi, I've cut a few sapphires that I've found at the Willows down to as small as 2.6mm dia. the cut being a petal cut. I would guess your 4mm stones would probably cut a 3.5mm dia. stone, so the thickness needs to be about 2.5mm. However I would recommend getting some practice cutting small stones in quartz or other cheap material, as working with rough that small is not easy.


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Re: Question about minimum cuttable thickness
« Reply #2 on: March 14, 2022, 04:57:52 PM »
Thank you very much! That is helpful. So my pretty little flat ones will be going back in the jar! BTW we were just up at Minerama and a fellow pulled out a 20 carat beauty that is a definite cutter! 


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