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What is gold purity: differences between 24K, 18K, and 14K

The purity of gold is one of the most important factors when buying or selling a piece of jewelry. Not all gold has the same value, and understanding what karats mean can help you know the true worth of your item. If you're thinking of selling gold in Arrecife or simply want to know the difference between 18K and 24K, we'll explain it clearly here. 🔎 What is gold purity? Gold purity indicates the amount of pure gold contained in a piece. It is measured in karats (K). Pure gold is 24 karats (24K). From there, it is mixed with other metals such as copper or silver to make it more resistant. 📌 Purity scale: 24K = 99.9% pure gold 18K = 75% pure gold 14K = 58.5% pure gold The higher the karat, the higher the proportion of gold, and usually the higher its value per gram. 🟡 24K Gold: maximum purity and value 24K gold is practically pure gold. Characteristics: Very intense yellow color Very soft Mainly used in gold bars and for investment It has the highest value per gram It is not common in daily jewelry because it scratches easily. 🟡 18K Gold: the most common in Spain 18K gold contains 75% pure gold and 25% other metals. It is the most common standard for jewelry in Spain. Advantages: Good balance between purity and resistance High market value Ideal for rings, chains, and bracelets If your jewelry has a 750 hallmark, it is 18 karats. 🟡 14K Gold: more resistant and economical 14K gold contains 58.5% pure gold. It is harder and more resistant, but has a lower value per gram than 18K. In Spain, it is less common than 18K, although it is seen in imported pieces. 🏷 How do I know if my gold is 18K, 24K, or 14K? To identify gold purity, you should look for a small internal engraving called a hallmark or stamp. The most common are: 999 → 24K 750 → 18K 585 → 14K If your piece has no visible hallmark, it can be checked with professional authenticity tests. 💰 How does gold purity affect the price? The price of gold depends on: Karatage (purity) Weight in grams Daily gold price Condition of the piece The higher the purity, the higher the price per gram. For example, 24K gold fetches more than 18K, and 18K more than 14K. 📍 Selling gold in Arrecife and Lanzarote If you want to sell gold in Arrecife, it is important that you are clearly informed of: The actual weight The exact karatage The price per gram applied The current quotation Transparency is key to getting the best price for your gold in Lanzarote. 📈 Why is it important to understand purity before selling? Many people sell their jewelry without knowing its karatage. This can lead them to misunderstand the true value of their piece. Knowing the purity of gold allows you to: ✔️ Know if it is 18K or 24K✔️ Understand why the price changes✔️ Compare offers critically✔️ Make an informed decision