Rosa's heart was racing from the four cups of coffee she had just finished, but she thought she might be having a heart attack.
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). Therefore, if your fiancee weighs 170 pounds, you have a 385,050-carat fiancee! A karat, when used with gold, is a unit of purity-- 24-karat gold is pure gold, but usually you mix gold with a metal like copper or silver to make jewelry (because pure gold is too soft). Each karat indicates 1/24th of the whole.
A karat measures the purity of gold based on a scale of 1-24, with 24 karats being the purest. What this means is that 24-karat (24K) gold has 99.9% purity, generally referred to as âpureâ gold. 18-karat (18K) gold has 75% pure gold. Its content is 18 parts gold and six parts other metal alloys.