Abstract: A fine jewelry hollow rope chain comprising a plurality of interfitting hollow wire links, each link defining a circumference, each link having a wire cross-section defining a hollow base portion of generally uniform wall thickness and at least one reinforcing rib portion joined on said base portion, said rib portion protruding beyond said base portion along the entire circumference of said link, thereby reinforcing said hollow link against mechanical deformation, chain links for preparing such rope chains and a method of manufacturing same.

Abstract: A fine jewelry diamond cut rope chain comprising a double helix rope chain made from tightly interfitting links of precious metal link wire, each link having a small gap formed therein so as to enable one of said links to pass through the gap of another link, said links being intertwined to fit tightly one against another, at least some of the links of the chain having a shallow high luster diamond cut surface band extending on the outer surface of at least part of an outer perimeter of said link, the cross-section of the link wire being substantially of the same shape throughout.

Abstract: A link for a fine jewelry chain which includes a base defining an outward-facing surface, and a raised portion formed integrally with and extending longitudinally along the outward-facing surface of the base, wherein the raised portion has at least one diamond-cut high luster surface formed thereon.

Abstract: A jewelry rope chain having tightly interfitting links made of wire of a given cross-section, each link having a small gap formed therein, so as to enable one of said links to pass through the gap of a second link, said links being intertwined to fit tightly one against the other and form in-outward appearance a double helix, the improvement comprising each link having a wire cross-section including a major axis defining a longer dimension and a minor axis defining a shorter dimension, said longer dimension being in the plane of the link and the shorter dimension being perpendicular thereto, the ratio of said longer dimension to said shorter dimension being greater than 1.3:1 but less than 3:1.

Abstract: A fine jewelry diamond cut rope chain comprising a double helix rope chain made from tightly interfitting links of precious metal, each link having a small gap formed therein so as to enable one of said links to pass through the gap of a second link, said links being intertwined to fit tightly one against another, characterized in that at least some of the links of the chain comprise a high luster diamond cut shallow band or strip extending along the surface of at least part of their outer perimeter. Precious metal wire chain links and methods of manufacture are also claimed.