Convert carats (ct)

Carat for gemstones: a measure of weight

Carat (abbreviated "ct") is a unit of measurement for the weight of gemstones and pearls. One carat corresponds to 0.2 grams.

Conversion from carat to gram and vice versa:

• 1 carat = 0.2 gram
• 1 gram = 5 carats

Example: A diamond of 5 carats weighs 1 gram.

Conversion from carat to other units:

• 1 carat = 200 milligrams
• 1 carat = 0.007055 oz (ounces)

Carat in gold: a measure of purity

When talking about gold, carat (abbreviated "K" or "kt") describes the proportion of gold in an alloy. 24 carat gold is pure gold.

Conversion from carat to gold purity:

• 24K = 100% gold
• 22K = 91.67% gold
• 18K = 75% gold
• 14K = 58.33% gold
• 10K = 41.67% gold

Note: The remaining percentage in a gold alloy consists of other metals such as copper, silver or zinc, which are added to strengthen or change the color.

Conclusion

The meaning of 'carat' varies depending on the context. For gemstones, it describes the weight, while for gold it measures the purity. When working with these materials, it is crucial to know the differences and the respective conversion in order to make accurate assessments and calculations.