International Gold 585 Mark
The international gold 585 mark, also known as 14 karat gold, is a widely used standard for indicating the purity of gold in jewelry and other precious metal objects. It is denoted by the number 585 stamped on the item, which represents the percentage of pure gold in the alloy.
Composition
14 karat gold is an alloy that contains 58.5% pure gold and 41.5% other metals, typically copper, silver, or zinc. The addition of these metals increases the durability and hardness of the gold, making it suitable for everyday wear.
Properties
14 karat gold is:
* Durable: With a hardness rating of around 120 Vickers, it is more resistant to scratches and dents than pure gold.
* Strong: Its tensile strength is significantly higher than that of pure gold, making it less likely to break or deform.
* Color: The alloying metals give 14 karat gold a warm, slightly reddish hue, which is often preferred for jewelry.
* Ductile: It is easily malleable and can be shaped into intricate designs.
* Corrosion-resistant: It does not tarnish or oxidize in normal atmospheric conditions.
Applications
International gold 585 mark is commonly used in:
* Jewelry: Rings, earrings, pendants, bracelets, and other pieces of jewelry.
* Coins: Commemorative and bullion coins.
* Watches: Cases and bracelets.
* Decorative objects: Picture frames, sculptures, and ornaments.
Value
The value of 14 karat gold is determined by the current spot price of gold and the percentage of pure gold in the alloy. It is generally more valuable than lower karat golds, such as 10 karat or 12 karat, but less valuable than higher karat golds, such as 18 karat or 24 karat.
Care and Maintenance
To maintain the beauty and value of 14 karat gold, it is important to:
* Store it in a dry, air-tight container to prevent tarnishing.
* Clean it regularly with a mild soap solution and a soft brush.
* Avoid exposing it to harsh chemicals or abrasive cleaners.
* Have it professionally inspected and cleaned periodically to ensure its integrity.
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