White gold is also typically plated with a layer of rhodium, which gives it its white appearance. The amount of pure gold in both yellow gold and white gold is dependent upon its karat weight ...

and rhodium. Produced by Claudia Romeo. Filmed by Claudia Romeo and David Ibekwe. More from Video Baird & Co. refines 99.99% pure gold. It goes through over 10 tons of gold a year. It makes cast ...