I set this Rosarita and turquoise in sterling silver. Rosarita is a unique material that derives its rich red coulour from the process of gold refining. I have hung the pendant on a heavy gage oval rolo chain. The pendant can be removed so the chain can be worn on its own or with another pendant for a variety of looks. The chain is adjustable up to 19.5 inches and the pendant measures 3 x1 inch. Complimentary polishing cloth included. This is a beautiful one of a kind statement necklace.