the square of the weight is multiplied by the price of a single carat; so that, for example, a rough stone of three carats costs 3x3x 2 or 18. It is similar with : cut diamonds, and in 1850 the ...

An curved arrow pointing right. The diamond industry has successfully manipulated the supply and demand to increase prices. Produced by Sara Silverstein. Follow BI Video: On Facebook More from ...