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If you’re new to buying gold or someone has given you gold jewelry, chances are good that you have questions. These can include wondering about gold purity and what that means.
Black gold, not to be confused with oil, is real gold that's been alloyed or surface treated to turn the metal a black color. Turning gold black changes the gold to a color other than its traditional yellow/orange tone while retaining its value. There are multiple techniques used to turn gold black, and each technique results in a different shade.
Gold is a precious metal that commands high prices on the commodities market. People buy solid gold in bars and bullion because it's a reliable store of value and tends to resist economic pressures. It's also turned into jewelry because people can literally wear their wealth, but gold jewelry is also faked for affordability and to imitate the real thing. It can be difficult to tell if something's real gold or fake.
The short answer to the question of "does sterling silver tarnish?" is yes, sterling silver does tarnish. All metals tarnish, but it's particularly unwanted on sterling silver due to the fact it obscures the gleam of the metal. Tarnish turns a piece of sterling silver different colors at first, then eventually turns it black if it's not polished regularly or kept in a sealed container.
For people who like a more neutral tone to their metal jewelry, there’s white gold with its similar appearance to silver. But for those who can’t live without that gorgeous, warm golden color tone, there’s yellow gold, as well as rose gold.