9karat
9karat gold, commonly written as 9K or 9ct, is an alloy used in jewelry that contains 37.5% gold by weight. The remaining 62.5% consists of other metals, typically copper, silver, zinc, or nickel, chosen to add strength and determine the color of the final alloy. The relatively low gold content makes 9K gold more affordable than higher-karat grades and generally more resistant to bending and scratching.
Colors of 9karat gold vary with the alloy mix. Yellow 9K is usually produced with copper-rich alloys;
Quality, labeling, and regulation vary by market. Jewelry marked 9K or 9ct denotes the gold content (375
Durability and care: The higher proportion of alloy metals generally makes 9K gold harder and more scratch-resistant
Market use: 9K gold is widely used for budget-friendly rings, bracelets, and earrings, appealing to consumers