18K Gold is a popular type of gold used in jewelry and other decorative items. The "18K" stands for 18 karats, which means that 18 out of 24 parts of the alloy are pure gold. This results in a gold content of 75%, making it more durable than higher karat gold while still retaining a rich, yellow color. Due to its balance of purity and strength, 18K Gold is often chosen for engagement rings, necklaces, and bracelets. It is less prone to scratching and bending compared to softer gold alloys, making it a practical choice for everyday wear.