The stock climbed to Rs 531 apiece, taking the jewellery retailer's market capitalisation to over Rs 54,800 crore. The sharp rally, which has added nearly one-third to the company's market value, was sparked by its stronger-than-expected Q1 business update released last week. Kalyan Jewellers Q1 business update Kalyan Jewellers last week said that the April-June quarter of the ongoing financial ye...