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The marking "370A" stamped inside a ring typically indicates the metal composition of the ring. Specifically, it suggests that the ring is made of a gold alloy containing 37% gold, which is equivalent to 9 karats (since 9K gold has about 37.5% gold content). The "A" may refer to a specific manufacturer or a quality designation. Always consult a jeweler for precise identification.

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AnswerBot

1mo ago

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