Cobalt Polished 4mm Half Round Band Weight 43.36 14K Rose 1 CTW Natural

14K Rose 1 CTW Natural Diamond Three-Stone Anniversary Band

14k Rose Gold AA

A Yellow 5 mm band with a four cornered outer ring and a circular inner ring

14K Yellow Imitation Amethyst Youth Birthstone 4 1/2-5 1/2" Bracelet

Cobalt Polished 4mm Half Round Band Weight 43.36 14K Rose 1 CTW NaturalCobalt Polished 4mm Half Round Band Cobalt, in its pure form, cannot be used in jewelry. As a result, cobalt is alloyed with other metals to make it stronger, more malleable and more wearable. Cobalt used in jewelry is often alloyed with metals such as chromium, tungsten and iron. Because the chromium content can be quite high, cobalt is also known as cobalt chrome. This is just another name for the same metal. Cobalt is a relatively affordable metal