Jeweller Tribhovandas Bhimji Zaveri (TBZ) reported 17 per cent rise in second quarter net profit at Rs 19 crore against Rs 16.3 crore (Q-o-Q). Its sales rose 24 per cent at Rs 350 crore compared to Rs 283.5 crore (Q-o-Q). %% Chairman Shrikant Zaveri said that its margins grew by 17 per cent in this quarter and the company will sell more diamond jewellery to boost margins. %% Further, the company is planning to unveil 12 stores this year. ''Out of that 12 we have already put up five stores in the last four months. In the next half we are putting up seven new stores,'' he added. %%