Lab-grown diamonds are becoming too mainstream, and sales are headed for a slowdown, jewelry experts told Business Insider.

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 ...

Polished diamond prices continued their downward trend in October, though the frequency and magnitude of price drops showed ...