This product is made completely In 925 Sterling Silver. Stones used in the setting are Zultanite and Cubic Zircon. Zultanite is an extremely rare, transparent gemstone from the Diaspore mineral family, which can show the colours yellow, cognac, pink or red. It is a colour changing stone which changes its colour depending on the light it is in. Turkey is the only place where the gemstone can be found.