d to offer he was also purchasing the man's supplier list. Shortly after making his purchase, Barnato had enough money to form the company of Barnato Brothers, Dealers in Diamond and Brokers in Mining Property with his brother. He would still go out among the miners to buy diamonds and use the negotiating skills he had honed while a kopje-walloper. He mostly dealt with the Boer miners and due to his amicable nature developed a loyal clientele. The Boers preferred his warm nature to the coldness of the established German trading houses. When trading with the miners he would pick up useful information from them concerning the output of various parts of the mine. He became convinced that he would be able to find the largest concentration of diamonds deep under ground at the center of the mine. Consequently, he and his brother bought four mines at the center for £3000. The purchase soon paid for itself and the mines made £2000 a week. He continued his bold speculation in mining claims and expanded to become Kimberly Cen
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