Free Video

Hammer & Clamps


In this video, I explain the differences between many hammers & clamps prior to setting any style of ring.
The optimum phrase is ‘being comfortable’ in setting stones. You don’t want your hand to hurt or have your clamp literally fall into pieces!
Your hammer should weigh just enough you the results you need. But the hammer must not be too heavy or your hand will get tired. “A tired hand gives you poor results!”


With over 40 years experience as a stone setter, Gerry Lewy is known throughout the diamond setting community. Gerry started his 9-year apprenticeship with a jewelry manufacturer and tutored by a gentleman ‘setter’, in Haddon Gardens, London. Gerry has redeveloped himself into more than a master setter, his purpose is now to be a teacher of the art as well.