Metal: Argentium Silver

Argentium Silver 935 is 93.5% is a modern sterling silver alloy, containing 93.5% silver, in which the traditional alloy is modified by removing some of the copper and adding the metalloid germanium.
Argentium silver 960 is a high purity jewellery alloy that meets the hallmarking requirements for the U.K. Britannia standard. It is slightly more tarnish resistant than Sterling Silver (again due to the reduction of the copper content).