The diamond selling hall in the diamond exchange is a fascinating thing to see. Many people, all looking to negotiate the best price for diamonds to buy and sell showcase their merchandise for other buyers to see. Since each diamond has different properties, the price is rarely the same for two diamonds. Every merchant has to carry many papers, text his colleagues on the spot, and deal with a lack of trust in others on a daily basis in this arena. It’s a slow, muddy, and tiring process, which has another layer of challenge which is that this is the agreed culture in this industry for years.