Cobalt Polished Black IP-plated 8mm Band Engvbl 14K White Freshwater Cultured Pearl

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Cobalt Polished Black IP-plated 8mm Band Engvbl 14K White Freshwater Cultured PearlCobalt Polished Black IP plated 8mm 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