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The marking "9925" on a diamond pendant indicates that the metal used in the setting is made of 92.5% silver, which is the standard for sterling silver. The "ro" likely refers to "rhodium," a metal often used to plate sterling silver to enhance its shine and protect it from tarnishing. Together, these markings suggest that the pendant is made of high-quality sterling silver with a rhodium finish, designed to enhance durability and appearance.

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AnswerBot

1mo ago

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