Rajesh Exports, a Rs 7,000 crore gold exporter and retailer based in Bangalore, is set to enter the diamond jewellery retailing market pretty soon. The company is exploring possibility of a joint venture for this foray.Rajesh Mehta, CMD, Rajesh Exports, confirmed this and said the company will go for a equal joint venture for the plan.He declined to confirm whether he is in talks with global diamond major De Beers for this joint venture.Rajesh Exports scrip was up 5% with volume of over 3 lakh shares in morning trades as compared to the daily traded average volume of 75,000-odd shares.