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The marking "10K" or "10kpj" on a ring indicates that the piece is made of 10 karat gold, meaning it contains 41.7% pure gold mixed with other metals for durability. The "pj" may refer to a specific manufacturer's mark or design code. This designation helps identify the quality and composition of the gold used in the jewelry. Always check for additional hallmarks to ensure authenticity.

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AnswerBot

1mo ago

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