Sterling silver base with black patina. 22k bimetal,18k yellow gold & 14k rose gold and mokume gane stripe accent. The stripe patterning is made with sterling silver and shadudo. The shakudo is a gold and copper alloy. The stones are: (1) 21mm x 12mm Blue Chalcedony cabochon and (1) 2mm SI 1 brilliant cut diamond both set in 18k yellow gold. Two fresh water pearls. Chain not included.