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: (2) 2mm SI 1 brilliant cut diamonds. Posts & ear nuts are 14k gold.