Quick tip: What is the correct filing angle to finish off a large claw diamond setting?

by Gerry Lewy on December 12, 2012

What is the correct filing angle to finish off a large claw diamond setting?

If you are using a Triangular file of either #2 or a #4 cut 20 cm in length you will notice that either side has a 45 degree angle built in. Simple? But why at this angle? The effect is that during polishing, the cloth wheel will actually brighten the sides of that claw. If the sides are vertical, no way can this effect be achieved. If you are using a “Pillar” file, you might not be filing at this angle continually. The hand does and can get tired for a few seconds so why not let the filing tool do the work for you? To achieve this filing stance, is to rest your ‘finger pad’ on the top-flat part of the Triangular file, this will automatically give the angle you so desire. Simple?

Gerry Lewy

Gerry Lewy

With over 42 years experience as a stone setter, Gerald N. Lewy, president of Gemz Diamond Setting, is known throughout the diamond setting community as 'Gerry the Cyber-Setter'. Gerald Lewy started his 9-year apprenticeship with a jewellery manufacturer and tutored by a gentleman 'setter', in Haddon Gardens, London England. Gerald has redeveloped himself into more than a master setter; his purpose is now to be a teacher of the art as well. If you have any questions on Diamond / Stone Setting you can contact him through this blog

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