Description 14K White Gold Approx. 040 Gauge (0.5mm Wide) Approx. 050 Gauge (0.6mm Wide) Approx. 058 Gauge (0.8mm Wide) Approx. 068 Gauge (1.0mm Wide) Approx. 078 Gauge (1.2mm Wide) Approx. 150 Gauge (2.5mm Wide) Available in Yellow Gold