Have you ever thought about where the diamonds of the whole world are? Of course, on the diamond exchanges - the epicenter of the world's largest deals, featuring the finest samples of precious stones. Diamond exchange is a club where the experts sell and buy rough and polished diamonds. The members of the diamond exchange provide comfortable conditions and convenient infrastructure for trading operations. Today there are thirty diamond exchanges in the world. These exchanges compete with each other: some are actively increasing the level of cooperation with their partners, while others are betting on zero tax and minimal bureaucracy....