Homonym: 18K (Gold)
"18K" refers to the purity of gold, indicating that it contains 75% pure gold and 25% other metals, such as silver or copper. The "K" stands for karat, a unit of measurement used to express the purity of gold. Higher karat values, like 24K, represent a higher percentage of pure gold.
Jewelry made from 18K gold is popular because it balances durability and beauty. The added metals enhance strength, making it less prone to scratching or bending compared to higher karat gold. This makes 18K gold jewelry a favored choice for rings, necklaces, and bracelets.