Still too soft for holding precious gemstones securely over time. If a 22k prong gets snagged, you risk losing a diamond. 18 Karat (18k): 75% Pure Gold

Choosing the "best" gold carat isn’t about finding a single winner; it’s about balancing based on how you plan to use the piece . Gold is naturally a very soft metal, so it is alloyed with other metals (like copper, silver, or zinc) to make it wearable. 24 Karat (24k): 99.9% Pure Gold

It can look slightly pale or "washed out." It also has the highest risk of tarnishing over time compared to higher carats. The Verdict: Which should you buy?