Sterling silver base with patina. 22k yellow bimetal, 14K green, and rose 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: 20mm x 12mm Rough Cut Beryl, (1) 2.5mm, (2) 2.25mm Rustic Rose Cut Diamonds.