The number beside “K” refers to gold purity. 18K gold contains 75% pure gold, while 14K contains roughly 58%. The remaining percentage consists of alloy metals such as copper, silver, or zinc, which give the piece its strength and color.

18K gold offers a richer, warmer tone and is favored in fine European jewelry, particularly in Italy, where it is considered the standard for luxury pieces. Its higher purity makes it gentler on sensitive skin and more resistant to tarnishing over time.

14K gold, with more alloy content, is harder and often more affordable, making it a practical choice for everyday wear. The right choice depends on how the piece will be worn and what you value most: purity and prestige, or durability and accessibility.