D. Swarovski & Co.

D. Swarovski Kg

Thomas Rauch

Jan Woerdenweber

Alexander Rief

Martin Würtenberger

Rudolf Altenberger

Michael Huter

A method of making a decorative article () such as a jewellery piece, the article comprising a body () having a decorative layer () and an element () set into the body. The method comprises: providing an element that is at least partially coated with a removable layer (), setting the element into the body, coating the element and the body with the decorative layer, and removing the removable layer and the decorative layer from the element.

Method of making a decorative article, such as a jewellery piece

A method of coloring cut gemstones introduces metals or metal oxides into a surface layer by means of heat treatment. During the heat treatment the gemstones are laid on a solid plate and the metals or metal oxides form a substantial constituent of the plate. The surface of the gemstone is protected from direct content with the metals and metal oxides in the plate by a layer containing non-coloring oxides.

Method of coloring cut gemstones

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Innsbruck, Austria

Thomas Rauch