Shibuichi is a Japanese alloy used in sheet metal inlay or wire inlay. The technique involves the inlaying of gold, silver and copper into a darkened silver base. Usually shibuichi is composed of 75% copper and 25% silver. In contemporary jewelry it can be found in Mokume Gane.

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Tiffany Shibuichi Vase. C. 1874. Photo © Trustees of the British Museum.