18K yellow gold base. 14k rose & white gold, and mokume gane overlays. Mokume gane is in wood grain patterning made from18k green gold,14k rose & white gold and shakudo. The stripe patterning is made with sterling silver and shadudo. The shakudo is a gold and copper alloy. Stones are: (1)1.7mm (1)1.5mm &(1)1.3mm SI 1 brilliant cut diamonds. Chain not included.