Hultquist-Copenhagen jewellery is plated with real silver and gold. The base is a metal alloy and guaranteed nickel free. This base is coated with copper or palladium which gives the plating a better finish and life. All stones are selected swarovki crystals, fresh water pearls and czech glass beads. To take care of your jewellery optimally we advise you not to spray directly with perfume or wear them during bathing or sleeping