Articles and materials about brilliants

What is the carat?

Carat it is a pod of a carob tree. Seeds of this tree were used as a unit of measurement of mass and volume and to measure the purity of gold as well.
The term «carat» has two meanings: “carat” is the unit of measurement of weight of precious stones (1 carat is 0.2 grams) and it is used to determine the quantity of gold in jewelry produced of this metal as well.