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The jewelry mark "14K Cu" indicates that the piece is made of 14-karat gold that contains copper as part of its alloy. In this case, "14K" signifies that the gold is 58.3% pure gold, while "Cu" denotes that copper is one of the metals mixed with the gold, likely to enhance its durability and color. This combination is common in gold jewelry, as copper can give a warm hue and improve the metal's strength.

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4mo ago

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What does CU stamped on a bracelet mean?

CU is 14k gold over copper.


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CU on jewelry means that it was made with (or completely made out of) copper.


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"14k cu" on a piece of gold means that it is 14 karat gold with copper added to it. The "cu" indicates the presence of copper in the alloy mixture, which is commonly used to give gold additional strength and durability.


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"14k cu" typically refers to 14-karat gold, which contains 58.3% gold and is alloyed with other metals for durability. The "cu" might imply "cubic," suggesting a measurement or shape, but it's not a standard term in jewelry. If used in a specific context, it could refer to the cubic volume of a gold item or a particular design. Always verify the context for accurate interpretation.


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The stamp "CU" on jewelry typically indicates that the piece is made of copper. It can also suggest that the item is composed of a copper alloy. In some cases, it may be used to denote the quality or purity of the metal, though it's less common than other metal stamps like "925" for sterling silver or "585" for gold. Always verify with a professional if you're unsure about the meaning of specific jewelry stamps.


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