Sterling Silver is an alloy, or combination of metal types. Unlike pure silver, which contains 99.9% elemental silver (Ag), sterling silver (925) contains one or more additional metals that add strength to the otherwise delicate material. Pure silver is naturally very soft, and would easily bend or break if used for jewelry without being blended with a stronger metal. The most common hallmark stamps for Sterling Silver are 925 or 925/°°° that indicate 92.5% silver purity.
Rhodium comes from the platinum family and is a noble and durable metal which features a bright white color. Rhodium plating is used on silver, gold and copper gives an off-white color, creating a bright mirror-like finish.
More benefits of rhodium plating include enhanced brightness, scratch and tarnishing resistance. It is also hypoallergenic and nickel-free.