Know your Metal
Sterling Silver and Brass naturally oxidize over the time with exposure to air and water. This darkening of the metal can be easily removed with the help of Metal Polish of your choice or a silver polish cloth.
To keep away from constant polishing we advise keeping your jewelry away from water as much as possible, to dry it when it does get wet, and to keep it in a dry air tight storage when not wearing.
Gold Plated is a thin layer of gold 0.05% actual gold or less on top of a base metal (brass or copper). Gold Plated will eventually tarnish when exposed to any kinds of liquids or chemicals.
Gold Vermeil is thick gold plating on top of sterling silver. US standards require at least 2.5 microns of gold plated on top of sterling silver. It is hypoallergenic, people with metal allergies can wear it safely. Gold vermeil will not tarnish easily.
Gold Filled is a solid layer of gold mechanically bonded to a base usually brass. Gold-filled is legally required to contain 5% or 1/20 gold by weight. Gold-filled is tarnish resistant.
Brass is an alloy made up of mostly copper and zinc.
Sterling Silver is made out of 92.5% of pure silver and 7.5 percent of other metals, making it more expensive.
Silver Plated is a thin layer of silver that on top of a base metal (brass or copper), providing a shiny look.