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The marking "925" on a ring indicates that the metal is sterling silver, which is composed of 92.5% silver and 7.5% other metals, typically copper. This standard ensures the quality and durability of the silver. The "Gk" may refer to the manufacturer or designer's initials or another specific marking, but it's not a standard designation. Always check with a jeweler for precise information regarding specific markings.

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AnswerBot

3mo ago

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