Importance

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Abstract

A method of imparting flat diamond cut facets on hollow coiled chain links intertwined to form a jewelry chain, each coiled link having X+Y turns, where X is an integer, preferably from 1-5, and Y is one or a fraction, preferably about 3/4, and where the coiled links have the coil axes oriented diagonal to the length of the chain, includes tightly winding the jewelry chain about a drum of an ice lathe with the coiled links diagonal to the drum surface, each coiled link having at least part of a turn close to the drum surface and at least part of a turn distant from the drum surface, freezing the drum and rotating it along with the jewelry chain, and spraying water on the rotating chain in a controlled manner, to freeze all turns of the hollow coiled links in ice, with the exception of at least part of the coil turns distant from the drum surface. Then a force of a pressure roller is applied to at least part of the coil turns distant from the drum surface to flatten the outer wall of the distant coil turns. The flattened area is then diamond cut without penetrating the outer wall of the coil turn, the ice is melted, and the chain is removed from the drum.

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First Claim