Question: what is the difference between carats of gold?
Answer: Difference in gold percentage K stands for karat (not to be confused with carat, which is the weight measure for gemstones) and refers to the percentage of gold in an alloy. To illustrate: 24K gold is 100% pure, 18K contains 75% gold and 25% alloyed metals, and 14K is 58% gold and 42% alloyed metals.