A metric carat weighs one-fifth of a gramme.
Apparently, a metric carat, or 0.20 gram, is a standard unit of weight for diamonds and most other gems. Prior to 1913, the French carat and Indian carat and the American carat were all different from each other, confusing the market. In 1913, the metric carat became the standard weight for diamonds and other gem stones. You can read more, below.
Carat IS a metric unit of mass
there are 5 carats in 1 grams
Millimeters, by definition, have no carat weight.
Carat is the measurement of a diamond's weight. The stone's value would partially depend on its carat weight.
Carat is the weight measurement for gemstones.
A carat is a measurement of weight. The biggest carat, then, would be the weight of the biggest item being weighed using carats.
Carat is a weight, so its weight is one tenth of a carat or one tenth of .20 grams.
A carat is a unit of weight used for gemstones. One third carat is the weight of the diamond.
You can calculate the total carat weight by adding the individual carat weight of each stone. Without a carat weight of each of your 15 stones, it is not possible to devise a sum total carat weight.
One carat of diamond in carat total weight equals one carat. One thousand dollars worth of diamond in total carat weight depends on the cut, colour, clarity and individual carat weight of the stones in the group.
If it is 1 carat weight=.20g .5ct= .10gms and so on you need to know how much it is carat the multiply carat with .20g