Diamond carat is the standard used to measure diamond weight - a Carat equals ⅕ of a gram. As a diamond’s weight increases, so too does its value.
A carat is not the only determining factor of a diamond’s value. There are different qualities of diamonds depending on cut, clarity or colour - a diamond with a more premium cut, colour and clarity will be more valuable. For more information on the “Four Cs” of diamonds, consult our diamond guide.