Tops: 18k yellow gold bezels around 2mm SI 1 diamonds on sterling cubes.18k yellow gold ear wires. Bottoms: 18k yellow bimetal base with 14K white, 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. Diamonds are (2) 2mm SL1 brilliant cut diamonds.