Diamond Capital INV Limited is in market research. In the world for the year about 114 million carat of diamonds for the sum about 7 billion dollars are on sale. The most rare and expensive pink and red diamonds rose in price to 55 thousand dollars per carat. The steady growth in diamond prices primarily due to demand. The demand for diamonds in recent years has been growing faster than their prey. China alone since the beginning in 2016 jewelry consumption increased more than doubled. According to Western experts, in 2020 demand for diamonds in the world will increase by 20%, while production only by 10%.