Platinum & Palladium Purity and Hallmarks

Platinum finds use in jewelry usually as 95% alloy (Plat 950) and a 90% alloy with 10% Iridium known as IridPlat (Irid10% Plat). Palladium is the newest member of the precious metal family to be used in Jewelry (Hallmarks officially introduced in July 2009). It is usually used as a 95% pure alloy. (950)