Zirconium is a hypoallergenic metal alloy that has chemical resistance to corrosion and is very light weight. It is silver/grey in color with a black coloring due to the heat treatment process used to create these sleek rings. Zirconium is durable and shatterproof, making it an ideal choice for jewelry. Compared to Titanium, Zirconium is more ductile and malleable, meaning it is easier to work with and is able to have a broader range of designs. While Zirconium rings are very tough, it is not infallible and will pick up some scratches from every day wear.