The carat, the standard unit of weight for diamonds and other gemstones, takes its name from the carob seed. Because these small seeds had a fairly uniform weight, early gem traders used them as counterweights in their balance scales. … Today, a carat weighs exactly the same in every cornerRead More →
a unit for measuring the fineness of gold, pure gold being 24 karats fine. Abbreviation: k., kt. Is it 24 karat or carat? It is spelled carat outside the United States but should not be confused with the unit used to measure the weight of gems, also called carat. ARead More →
A carat is a unit of weight for diamonds and other gemstones. One carat equals 200 milligrams (0.200 grams). There are 453 grams in a pound (1,000 grams to a kilogram). … So if a piece of jewelry is made of metal that is 18 parts gold and 6 partsRead More →