For instance, if the price of a diamond is $5000 and the weight of the same diamond is 0. 75 carats, you would calculate the price per carat as follows: Diamond Price Per Carat = $5000 / 0. 75 ...

Sánchez’s cushion-cut diamond ring is 30 carats Sánchez’s engagement ring ... The ring is estimated to cost between $3 and $5 ...

Good said lab-grown diamonds tend to cost about 30 to 40 percent less than mined diamonds of the same carat, colour, cut and clarity. Near New York City's Diamond District, gemologist David ...