You have the focus of FS explanation.
3 thoughts on “Foreign friends sent me a bracelet with SF and 750 she said it was gold? But what does sf mean?”
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You have the focus of FS explanation.
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I have a major in jewelry design, 750 -character printing is K gold, 75%gold and other precious metals synthesis (silver, copper, nickel, etc.). The golden symbol is AU. Now there are many "imitation" real gold jewelry (that is, SF you said), which are made of silver or even copper, and plated. So you are imitation, thank you for adopting it
SF is a symbol of copper silver plating, not gold
The symbol of the gold is AU750
SF is not gold!