The main component of precious metals is gold, which is combined with silver, copper and palladium to create the unique Niessing colors. Great expertise and precision are required in every detail, because the slightest difference in proportions and quantity, temperature or melting process can lead to failure and result in a poor quality alloy. Our saying goes: creating the perfect gold alloy is an art in itself. For Niessing's alloys, we only use gold from the Allgemeine Gold- und Silberscheideanstalt ag (agosi), which is shipped from the jewelry center in Pforzheim, Germany. The agosi has earned the chain of custody certification, which guarantees conflict-free sourcing and compliance with responsible use of precious metals.